40304231240 has 128 divisors (see below), whose sum is σ = 116464642560. Its totient is φ = 12201007104.

The previous prime is 40304231207. The next prime is 40304231243. The reversal of 40304231240 is 4213240304.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is not an unprimeable number, because it can be changed into a prime (40304231243) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 156989 + ... + 324428.

It is an arithmetic number, because the mean of its divisors is an integer number (909880020).

Almost surely, 2^40304231240 is an apocalyptic number.

40304231240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40304231240 is an abundant number, since it is smaller than the sum of its proper divisors (76160411320).

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

40304231240 is a wasteful number, since it uses less digits than its factorization.

40304231240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481471 (or 481467 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 40304231240 its reverse (4213240304), we get a palindrome (44517471544).

The spelling of 40304231240 in words is "forty billion, three hundred four million, two hundred thirty-one thousand, two hundred forty".