7312979450 has 24 divisors (see below), whose sum is σ = 15545305632. Its totient is φ = 2507307120.

The previous prime is 7312979447. The next prime is 7312979489. The reversal of 7312979450 is 549792137.

It is a super-2 number, since 2×7312979450² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7312979395 and 7312979404.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10446764 + ... + 10447463.

It is an arithmetic number, because the mean of its divisors is an integer number (647721068).

Almost surely, 2^7312979450 is an apocalyptic number.

7312979450 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

7312979450 is an abundant number, since it is smaller than the sum of its proper divisors (8232326182).

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

7312979450 is a wasteful number, since it uses less digits than its factorization.

7312979450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20894246 (or 20894241 counting only the distinct ones).

The product of its (nonzero) digits is 476280, while the sum is 47.

The square root of 7312979450 is about 85515.9602062679. The cubic root of 7312979450 is about 1941.0264389681.

The spelling of 7312979450 in words is "seven billion, three hundred twelve million, nine hundred seventy-nine thousand, four hundred fifty".