1400423200 has 144 divisors (see below), whose sum is σ = 3751072416. Its totient is φ = 506316800.

The previous prime is 1400423191. The next prime is 1400423203. The reversal of 1400423200 is 23240041.

It is a super-2 number, since 2×1400423200² = 3922370278196480000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (1400423203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2050059 + ... + 2050741.

It is an arithmetic number, because the mean of its divisors is an integer number (26049114).

Almost surely, 2^1400423200 is an apocalyptic number.

1400423200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1400423200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1875536208).

1400423200 is an abundant number, since it is smaller than the sum of its proper divisors (2350649216).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1400423200 is a wasteful number, since it uses less digits than its factorization.

1400423200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 947 (or 934 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 1400423200 is about 37422.2286883077. The cubic root of 1400423200 is about 1118.8016519539.

Adding to 1400423200 its reverse (23240041), we get a palindrome (1423663241).

The spelling of 1400423200 in words is "one billion, four hundred million, four hundred twenty-three thousand, two hundred".