403013664 has 48 divisors (see below), whose sum is σ = 1175459040. Its totient is φ = 134337600.

The previous prime is 403013651. The next prime is 403013669. The reversal of 403013664 is 466310304.

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

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (403013669) 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, 232362 + ... + 234089.

It is an arithmetic number, because the mean of its divisors is an integer number (24488730).

Almost surely, 2^403013664 is an apocalyptic number.

It is an amenable number.

403013664 is an abundant number, since it is smaller than the sum of its proper divisors (772445376).

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

403013664 is a wasteful number, since it uses less digits than its factorization.

403013664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466470 (or 466456 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 403013664 is about 20075.2002231609. The cubic root of 403013664 is about 738.6520775153.

Adding to 403013664 its reverse (466310304), we get a palindrome (869323968).

The spelling of 403013664 in words is "four hundred three million, thirteen thousand, six hundred sixty-four".