402634156 has 6 divisors (see below), whose sum is σ = 704609780. Its totient is φ = 201317076.

The previous prime is 402634151. The next prime is 402634217. The reversal of 402634156 is 651436204.

It is a super-2 number, since 2×402634156² = 324228527155664672, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (402634151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50329266 + ... + 50329273.

Almost surely, 2^402634156 is an apocalyptic number.

It is an amenable number.

402634156 is a deficient number, since it is larger than the sum of its proper divisors (301975624).

402634156 is a wasteful number, since it uses less digits than its factorization.

402634156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100658543 (or 100658541 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 402634156 is about 20065.7458371225. The cubic root of 402634156 is about 738.4201479016.

The spelling of 402634156 in words is "four hundred two million, six hundred thirty-four thousand, one hundred fifty-six".