102400356 has 12 divisors (see below), whose sum is σ = 238934192. Its totient is φ = 34133448.

The previous prime is 102400313. The next prime is 102400369. The reversal of 102400356 is 653004201.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4266670 + ... + 4266693.

Almost surely, 2^102400356 is an apocalyptic number.

It is an amenable number.

102400356 is an abundant number, since it is smaller than the sum of its proper divisors (136533836).

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

102400356 is a wasteful number, since it uses less digits than its factorization.

102400356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8533370 (or 8533368 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 102400356 is about 10119.3061026930. The cubic root of 102400356 is about 467.8433802751.

Adding to 102400356 its reverse (653004201), we get a palindrome (755404557).

The spelling of 102400356 in words is "one hundred two million, four hundred thousand, three hundred fifty-six".