7507420452 has 36 divisors (see below), whose sum is σ = 21688104256. Its totient is φ = 2144977200.

The previous prime is 7507420433. The next prime is 7507420511. The reversal of 7507420452 is 2540247057.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×7507420452² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 14895424 + ... + 14895927.

Almost surely, 2^7507420452 is an apocalyptic number.

It is an amenable number.

7507420452 is an abundant number, since it is smaller than the sum of its proper divisors (14180683804).

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

7507420452 is a wasteful number, since it uses less digits than its factorization.

7507420452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29791368 (or 29791363 counting only the distinct ones).

The product of its (nonzero) digits is 78400, while the sum is 36.

The square root of 7507420452 is about 86645.3717863799. The cubic root of 7507420452 is about 1958.0791652961.

The spelling of 7507420452 in words is "seven billion, five hundred seven million, four hundred twenty thousand, four hundred fifty-two".