70406404 has 12 divisors (see below), whose sum is σ = 128568384. Its totient is φ = 33672584.

The previous prime is 70406359. The next prime is 70406417. The reversal of 70406404 is 40460407.

It is a happy number.

It is a super-2 number, since 2×70406404² = 9914123448422432, which contains 22 as substring.

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, 382552 + ... + 382735.

It is an arithmetic number, because the mean of its divisors is an integer number (10714032).

Almost surely, 2^70406404 is an apocalyptic number.

It is an amenable number.

70406404 is a deficient number, since it is larger than the sum of its proper divisors (58161980).

70406404 is a wasteful number, since it uses less digits than its factorization.

70406404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 765314 (or 765312 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 70406404 is about 8390.8524000843. The cubic root of 70406404 is about 412.9245661095.

The spelling of 70406404 in words is "seventy million, four hundred six thousand, four hundred four".