403265040 has 40 divisors (see below), whose sum is σ = 1250122368. Its totient is φ = 107537280.

The previous prime is 403265033. The next prime is 403265047. The reversal of 403265040 is 40562304.

It is an interprime number because it is at equal distance from previous prime (403265033) and next prime (403265047).

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 403265040.

It is not an unprimeable number, because it can be changed into a prime (403265047) 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, 839896 + ... + 840375.

Almost surely, 2^403265040 is an apocalyptic number.

403265040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

403265040 is an abundant number, since it is smaller than the sum of its proper divisors (846857328).

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

403265040 is a wasteful number, since it uses less digits than its factorization.

403265040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1680287 (or 1680281 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 403265040 is about 20081.4601062771. The cubic root of 403265040 is about 738.8056213686.

The spelling of 403265040 in words is "four hundred three million, two hundred sixty-five thousand, forty".