7502349906 has 24 divisors (see below), whose sum is σ = 16268763420. Its totient is φ = 2498679936.

The previous prime is 7502349893. The next prime is 7502349913. The reversal of 7502349906 is 6099432057.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 7441650225 + 60699681 = 86265^2 + 7791^2 .

It is a super-2 number, since 2×7502349906² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

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, 153211 + ... + 196158.

Almost surely, 2^7502349906 is an apocalyptic number.

7502349906 is an abundant number, since it is smaller than the sum of its proper divisors (8766413514).

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

7502349906 is a wasteful number, since it uses less digits than its factorization.

7502349906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350570 (or 350567 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 45.

The square root of 7502349906 is about 86616.1065045064. The cubic root of 7502349906 is about 1957.6382341471.

The spelling of 7502349906 in words is "seven billion, five hundred two million, three hundred forty-nine thousand, nine hundred six".