312433442040 has 64 divisors (see below), whose sum is σ = 946963251360. Its totient is φ = 82456657920.

The previous prime is 312433442033. The next prime is 312433442051. The reversal of 312433442040 is 40244334213.

It is a happy number.

It is a super-2 number, since 2×312433442040² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 312433441989 and 312433442007.

It is a congruent number.

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, 13409041 + ... + 13432320.

Almost surely, 2^312433442040 is an apocalyptic number.

312433442040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

312433442040 is an abundant number, since it is smaller than the sum of its proper divisors (634529809320).

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

312433442040 is a wasteful number, since it uses less digits than its factorization.

312433442040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26841472 (or 26841468 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 30.

Adding to 312433442040 its reverse (40244334213), we get a palindrome (352677776253).

The spelling of 312433442040 in words is "three hundred twelve billion, four hundred thirty-three million, four hundred forty-two thousand, forty".