7402620520 has 32 divisors (see below), whose sum is σ = 17062141320. Its totient is φ = 2888826880.

The previous prime is 7402620499. The next prime is 7402620529. The reversal of 7402620520 is 250262047.

It can be written as a sum of positive squares in 4 ways, for example, as 5150358756 + 2252261764 = 71766^2 + 47458^2 .

It is not an unprimeable number, because it can be changed into a prime (7402620529) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2255257 + ... + 2258536.

Almost surely, 2^7402620520 is an apocalyptic number.

It is an amenable number.

7402620520 is an abundant number, since it is smaller than the sum of its proper divisors (9659520800).

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

7402620520 is a wasteful number, since it uses less digits than its factorization.

7402620520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4513845 (or 4513841 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 7402620520 is about 86038.4827853211. The cubic root of 7402620520 is about 1948.9251600130.

Adding to 7402620520 its reverse (250262047), we get a palindrome (7652882567).

The spelling of 7402620520 in words is "seven billion, four hundred two million, six hundred twenty thousand, five hundred twenty".