402339936 has 24 divisors (see below), whose sum is σ = 1056142584. Its totient is φ = 134113280.

The previous prime is 402339923. The next prime is 402339941. The reversal of 402339936 is 639933204.

It is a tau number, because it is divible by the number of its divisors (24).

It is a junction number, because it is equal to n+sod(n) for n = 402339894 and 402339903.

It is a congruent number.

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, 2095425 + ... + 2095616.

It is an arithmetic number, because the mean of its divisors is an integer number (44005941).

Almost surely, 2^402339936 is an apocalyptic number.

It is an amenable number.

402339936 is an abundant number, since it is smaller than the sum of its proper divisors (653802648).

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

402339936 is a wasteful number, since it uses less digits than its factorization.

402339936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4191054 (or 4191046 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 39.

The square root of 402339936 is about 20058.4130977503. The cubic root of 402339936 is about 738.2402402330.

The spelling of 402339936 in words is "four hundred two million, three hundred thirty-nine thousand, nine hundred thirty-six".