403220031240 has 128 divisors (see below), whose sum is σ = 1309532313600. Its totient is φ = 98734433280.

The previous prime is 403220031229. The next prime is 403220031251. The reversal of 403220031240 is 42130022304.

It is an interprime number because it is at equal distance from previous prime (403220031229) and next prime (403220031251).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 378675 + ... + 974594.

It is an arithmetic number, because the mean of its divisors is an integer number (10230721200).

Almost surely, 2^403220031240 is an apocalyptic number.

403220031240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

403220031240 is an abundant number, since it is smaller than the sum of its proper divisors (906312282360).

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

403220031240 is a wasteful number, since it uses less digits than its factorization.

403220031240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1353487 (or 1353483 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 403220031240 its reverse (42130022304), we get a palindrome (445350053544).

The spelling of 403220031240 in words is "four hundred three billion, two hundred twenty million, thirty-one thousand, two hundred forty".