402113522 has 8 divisors (see below), whose sum is σ = 609142572. Its totient is φ = 199066000.

The previous prime is 402113501. The next prime is 402113557. The reversal of 402113522 is 225311204.

It can be written as a sum of positive squares in 2 ways, for example, as 398760961 + 3352561 = 19969^2 + 1831^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 402113494 and 402113503.

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, 995129 + ... + 995532.

Almost surely, 2^402113522 is an apocalyptic number.

402113522 is a deficient number, since it is larger than the sum of its proper divisors (207029050).

402113522 is a wasteful number, since it uses less digits than its factorization.

402113522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1990764.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 402113522 is about 20052.7684373006. The cubic root of 402113522 is about 738.1017343955.

Adding to 402113522 its reverse (225311204), we get a palindrome (627424726).

The spelling of 402113522 in words is "four hundred two million, one hundred thirteen thousand, five hundred twenty-two".