402770424 has 64 divisors (see below), whose sum is σ = 1152944640. Its totient is φ = 114860160.

The previous prime is 402770371. The next prime is 402770437. The reversal of 402770424 is 424077204.

It is a junction number, because it is equal to n+sod(n) for n = 402770391 and 402770400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101029 + ... + 104939.

It is an arithmetic number, because the mean of its divisors is an integer number (18014760).

Almost surely, 2^402770424 is an apocalyptic number.

It is an amenable number.

402770424 is an abundant number, since it is smaller than the sum of its proper divisors (750174216).

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

402770424 is a wasteful number, since it uses less digits than its factorization.

402770424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4540 (or 4536 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 30.

The square root of 402770424 is about 20069.1410877496. The cubic root of 402770424 is about 738.5034424472.

The spelling of 402770424 in words is "four hundred two million, seven hundred seventy thousand, four hundred twenty-four".