31435412040 has 64 divisors (see below), whose sum is σ = 104784710400. Its totient is φ = 8382776256.

The previous prime is 31435412017. The next prime is 31435412051. The reversal of 31435412040 is 4021453413.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 31435411995 and 31435412013.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14552352 + ... + 14554511.

It is an arithmetic number, because the mean of its divisors is an integer number (1637261100).

Almost surely, 2^31435412040 is an apocalyptic number.

31435412040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31435412040 is an abundant number, since it is smaller than the sum of its proper divisors (73349298360).

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

31435412040 is a wasteful number, since it uses less digits than its factorization.

31435412040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29106883 (or 29106873 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 31435412040 its reverse (4021453413), we get a palindrome (35456865453).

The spelling of 31435412040 in words is "thirty-one billion, four hundred thirty-five million, four hundred twelve thousand, forty".