7473306440 has 32 divisors (see below), whose sum is σ = 17172708480. Its totient is φ = 2925719232.

The previous prime is 7473306377. The next prime is 7473306517. The reversal of 7473306440 is 446033747.

It is a super-2 number, since 2×7473306440² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7473306394 and 7473306403.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1985702 + ... + 1989461.

It is an arithmetic number, because the mean of its divisors is an integer number (536647140).

Almost surely, 2^7473306440 is an apocalyptic number.

It is an amenable number.

7473306440 is an abundant number, since it is smaller than the sum of its proper divisors (9699402040).

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

7473306440 is a wasteful number, since it uses less digits than its factorization.

7473306440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3975221 (or 3975217 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 38.

The square root of 7473306440 is about 86448.2876637820. The cubic root of 7473306440 is about 1955.1087988325.

The spelling of 7473306440 in words is "seven billion, four hundred seventy-three million, three hundred six thousand, four hundred forty".