1013449988 has 6 divisors (see below), whose sum is σ = 1773537486. Its totient is φ = 506724992.

The previous prime is 1013449963. The next prime is 1013449991. The reversal of 1013449988 is 8899443101.

It can be written as a sum of positive squares in only one way, i.e., 828979264 + 184470724 = 28792^2 + 13582^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126681245 + ... + 126681252.

It is an arithmetic number, because the mean of its divisors is an integer number (295589581).

Almost surely, 2^1013449988 is an apocalyptic number.

It is an amenable number.

1013449988 is a deficient number, since it is larger than the sum of its proper divisors (760087498).

1013449988 is a wasteful number, since it uses less digits than its factorization.

1013449988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253362501 (or 253362499 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 47.

The square root of 1013449988 is about 31834.7292748030. The cubic root of 1013449988 is about 1004.4633779512.

The spelling of 1013449988 in words is "one billion, thirteen million, four hundred forty-nine thousand, nine hundred eighty-eight".