402134426 has 16 divisors (see below), whose sum is σ = 631199304. Its totient is φ = 191939904.

The previous prime is 402134413. The next prime is 402134431. The reversal of 402134426 is 624431204.

It can be written as a sum of positive squares in 4 ways, for example, as 396607225 + 5527201 = 19915^2 + 2351^2 .

It is a junction number, because it is equal to n+sod(n) for n = 402134395 and 402134404.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47345 + ... + 55188.

Almost surely, 2^402134426 is an apocalyptic number.

402134426 is a deficient number, since it is larger than the sum of its proper divisors (229064878).

402134426 is a wasteful number, since it uses less digits than its factorization.

402134426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102625.

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 402134426 is about 20053.2896553159. The cubic root of 402134426 is about 738.1145243254.

The spelling of 402134426 in words is "four hundred two million, one hundred thirty-four thousand, four hundred twenty-six".