1549439996 has 18 divisors (see below), whose sum is σ = 2936144232. Its totient is φ = 715125840.

The previous prime is 1549439971. The next prime is 1549440007. The reversal of 1549439996 is 6999349451.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1145360 + ... + 1146711.

It is an arithmetic number, because the mean of its divisors is an integer number (163119124).

Almost surely, 2^1549439996 is an apocalyptic number.

It is an amenable number.

1549439996 is a deficient number, since it is larger than the sum of its proper divisors (1386704236).

1549439996 is a wasteful number, since it uses less digits than its factorization.

1549439996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2292101 (or 2292086 counting only the distinct ones).

The product of its digits is 9447840, while the sum is 59.

The square root of 1549439996 is about 39362.9266696469. The cubic root of 1549439996 is about 1157.1551363747.

The spelling of 1549439996 in words is "one billion, five hundred forty-nine million, four hundred thirty-nine thousand, nine hundred ninety-six".