402070224 has 20 divisors (see below), whose sum is σ = 1038681536. Its totient is φ = 134023392.

The previous prime is 402070223. The next prime is 402070241. The reversal of 402070224 is 422070204.

It is a self number, because there is not a number n which added to its sum of digits gives 402070224.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402070223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4188184 + ... + 4188279.

Almost surely, 2^402070224 is an apocalyptic number.

It is an amenable number.

402070224 is an abundant number, since it is smaller than the sum of its proper divisors (636611312).

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

402070224 is a wasteful number, since it uses less digits than its factorization.

402070224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8376474 (or 8376468 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 21.

The square root of 402070224 is about 20051.6888066816. The cubic root of 402070224 is about 738.0752414822.

The spelling of 402070224 in words is "four hundred two million, seventy thousand, two hundred twenty-four".