1557226048 has 28 divisors (see below), whose sum is σ = 3531567232. Its totient is φ = 667382400.

The previous prime is 1557225991. The next prime is 1557226051. The reversal of 1557226048 is 8406227551.

It is a tau number, because it is divible by the number of its divisors (28).

It is a self number, because there is not a number n which added to its sum of digits gives 1557226048.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1737528 + ... + 1738423.

Almost surely, 2^1557226048 is an apocalyptic number.

It is an amenable number.

1557226048 is an abundant number, since it is smaller than the sum of its proper divisors (1974341184).

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

1557226048 is an equidigital number, since it uses as much as digits as its factorization.

1557226048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3475970 (or 3475960 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 40.

The square root of 1557226048 is about 39461.7035618079. The cubic root of 1557226048 is about 1159.0901625035.

The spelling of 1557226048 in words is "one billion, five hundred fifty-seven million, two hundred twenty-six thousand, forty-eight".