1557480264 has 64 divisors (see below), whose sum is σ = 4034188800. Its totient is φ = 500484096.

The previous prime is 1557480251. The next prime is 1557480271. The reversal of 1557480264 is 4620847551.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 599352 + ... + 601944.

It is an arithmetic number, because the mean of its divisors is an integer number (63034200).

Almost surely, 2^1557480264 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1557480264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2017094400).

1557480264 is an abundant number, since it is smaller than the sum of its proper divisors (2476708536).

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

1557480264 is a wasteful number, since it uses less digits than its factorization.

1557480264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3494 (or 3490 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 42.

The square root of 1557480264 is about 39464.9244773128. The cubic root of 1557480264 is about 1159.1532326087.

The spelling of 1557480264 in words is "one billion, five hundred fifty-seven million, four hundred eighty thousand, two hundred sixty-four".