402741836 has 24 divisors (see below), whose sum is σ = 809711616. Its totient is φ = 171697680.

The previous prime is 402741817. The next prime is 402741839. The reversal of 402741836 is 638147204.

It is a junction number, because it is equal to n+sod(n) for n = 402741796 and 402741805.

It is not an unprimeable number, because it can be changed into a prime (402741839) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32306 + ... + 43001.

It is an arithmetic number, because the mean of its divisors is an integer number (33737984).

Almost surely, 2^402741836 is an apocalyptic number.

It is an amenable number.

402741836 is an abundant number, since it is smaller than the sum of its proper divisors (406969780).

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

402741836 is a wasteful number, since it uses less digits than its factorization.

402741836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75509 (or 75507 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 402741836 is about 20068.4288373555. The cubic root of 402741836 is about 738.4859694363.

The spelling of 402741836 in words is "four hundred two million, seven hundred forty-one thousand, eight hundred thirty-six".