1400405200 has 60 divisors (see below), whose sum is σ = 3372694848. Its totient is φ = 558793600.

The previous prime is 1400405189. The next prime is 1400405213. The reversal of 1400405200 is 25040041.

It is a super-2 number, since 2×1400405200² = 3922269448374080000, which contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 168339 + ... + 176461.

Almost surely, 2^1400405200 is an apocalyptic number.

1400405200 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 1400405200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1686347424).

1400405200 is an abundant number, since it is smaller than the sum of its proper divisors (1972289648).

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

1400405200 is a wasteful number, since it uses less digits than its factorization.

1400405200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8572 (or 8561 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 1400405200 is about 37421.9881887641. The cubic root of 1400405200 is about 1118.7968585182.

Adding to 1400405200 its reverse (25040041), we get a palindrome (1425445241).

The spelling of 1400405200 in words is "one billion, four hundred million, four hundred five thousand, two hundred".