70100400 has 60 divisors (see below), whose sum is σ = 224558792. Its totient is φ = 18693120.

The previous prime is 70100399. The next prime is 70100423. The reversal of 70100400 is 400107.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (12).

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, 28009 + ... + 30408.

Almost surely, 2^70100400 is an apocalyptic number.

It is an amenable number.

70100400 is an abundant number, since it is smaller than the sum of its proper divisors (154458392).

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

70100400 is a wasteful number, since it uses less digits than its factorization.

70100400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58438 (or 58427 counting only the distinct ones).

The product of its (nonzero) digits is 28, while the sum is 12.

The square root of 70100400 is about 8372.5981630555. The cubic root of 70100400 is about 412.3254725412.

Adding to 70100400 its reverse (400107), we get a palindrome (70500507).

It can be divided in two parts, 70100 and 400, that added together give a triangular number (70500 = T₃₇₅).

The spelling of 70100400 in words is "seventy million, one hundred thousand, four hundred".