1400001200 has 60 divisors (see below), whose sum is σ = 3622247328. Its totient is φ = 516921600.

The previous prime is 1400001193. The next prime is 1400001203. The reversal of 1400001200 is 21000041.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is not an unprimeable number, because it can be changed into a prime (1400001203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 129416 + ... + 139815.

Almost surely, 2^1400001200 is an apocalyptic number.

1400001200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1400001200 is an abundant number, since it is smaller than the sum of its proper divisors (2222246128).

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

1400001200 is a wasteful number, since it uses less digits than its factorization.

1400001200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269262 (or 269251 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 8.

The square root of 1400001200 is about 37416.5899034105. The cubic root of 1400001200 is about 1118.6892617067.

Adding to 1400001200 its reverse (21000041), we get a palindrome (1421001241).

The spelling of 1400001200 in words is "one billion, four hundred million, one thousand, two hundred".