403263264 has 48 divisors (see below), whose sum is σ = 1061605440. Its totient is φ = 134035200.

The previous prime is 403263257. The next prime is 403263269. The reversal of 403263264 is 462362304.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (403263269) 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, 28614 + ... + 40314.

It is an arithmetic number, because the mean of its divisors is an integer number (22116780).

Almost surely, 2^403263264 is an apocalyptic number.

It is an amenable number.

403263264 is an abundant number, since it is smaller than the sum of its proper divisors (658342176).

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

403263264 is a wasteful number, since it uses less digits than its factorization.

403263264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12073 (or 12065 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 30.

The square root of 403263264 is about 20081.4158863363. The cubic root of 403263264 is about 738.8045367877.

The spelling of 403263264 in words is "four hundred three million, two hundred sixty-three thousand, two hundred sixty-four".