7257133480 has 32 divisors (see below), whose sum is σ = 16855280640. Its totient is φ = 2809212480.

The previous prime is 7257133459. The next prime is 7257133493. The reversal of 7257133480 is 843317527.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (40).

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, 2925024 + ... + 2927503.

It is an arithmetic number, because the mean of its divisors is an integer number (526727520).

Almost surely, 2^7257133480 is an apocalyptic number.

It is an amenable number.

7257133480 is an abundant number, since it is smaller than the sum of its proper divisors (9598147160).

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

7257133480 is a wasteful number, since it uses less digits than its factorization.

7257133480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5852569 (or 5852565 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 40.

The square root of 7257133480 is about 85188.8107676120. The cubic root of 7257133480 is about 1936.0728897323.

The spelling of 7257133480 in words is "seven billion, two hundred fifty-seven million, one hundred thirty-three thousand, four hundred eighty".