1538533048 has 32 divisors (see below), whose sum is σ = 3289401360. Its totient is φ = 668321280.

The previous prime is 1538532977. The next prime is 1538533049. The reversal of 1538533048 is 8403358351.

It is a self number, because there is not a number n which added to its sum of digits gives 1538533048.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1538533049) 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, 433338 + ... + 436873.

Almost surely, 2^1538533048 is an apocalyptic number.

It is an amenable number.

1538533048 is an abundant number, since it is smaller than the sum of its proper divisors (1750868312).

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

1538533048 is a wasteful number, since it uses less digits than its factorization.

1538533048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 870247 (or 870243 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 40.

The square root of 1538533048 is about 39224.1385883744. The cubic root of 1538533048 is about 1154.4335591958.

The spelling of 1538533048 in words is "one billion, five hundred thirty-eight million, five hundred thirty-three thousand, forty-eight".