402109026 has 16 divisors (see below), whose sum is σ = 877328928. Its totient is φ = 121851200.

The previous prime is 402109003. The next prime is 402109063. The reversal of 402109026 is 620901204.

It is a junction number, because it is equal to n+sod(n) for n = 402108987 and 402109005.

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, 3046215 + ... + 3046346.

It is an arithmetic number, because the mean of its divisors is an integer number (54833058).

Almost surely, 2^402109026 is an apocalyptic number.

402109026 is an abundant number, since it is smaller than the sum of its proper divisors (475219902).

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

402109026 is a wasteful number, since it uses less digits than its factorization.

402109026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6092577.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 402109026 is about 20052.6563327655. The cubic root of 402109026 is about 738.0989834992.

The spelling of 402109026 in words is "four hundred two million, one hundred nine thousand, twenty-six".