403397064 has 64 divisors (see below), whose sum is σ = 1280630400. Its totient is φ = 115255872.

The previous prime is 403397041. The next prime is 403397081. The reversal of 403397064 is 460793304.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 131887 + ... + 134910.

It is an arithmetic number, because the mean of its divisors is an integer number (20009850).

Almost surely, 2^403397064 is an apocalyptic number.

It is an amenable number.

403397064 is an abundant number, since it is smaller than the sum of its proper divisors (877233336).

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

403397064 is a wasteful number, since it uses less digits than its factorization.

403397064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266819 (or 266809 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 36.

The square root of 403397064 is about 20084.7470484445. The cubic root of 403397064 is about 738.8862378542.

The spelling of 403397064 in words is "four hundred three million, three hundred ninety-seven thousand, sixty-four".