1949498816 has 28 divisors (see below), whose sum is σ = 3871066680. Its totient is φ = 974112000.

The previous prime is 1949498807. The next prime is 1949498833. The reversal of 1949498816 is 6188949491.

It is a congruent number.

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, 97691 + ... + 115941.

Almost surely, 2^1949498816 is an apocalyptic number.

1949498816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1949498816 is a deficient number, since it is larger than the sum of its proper divisors (1921567864).

1949498816 is a wasteful number, since it uses less digits than its factorization.

1949498816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19932 (or 19922 counting only the distinct ones).

The product of its digits is 4478976, while the sum is 59.

The square root of 1949498816 is about 44153.1291756315. The cubic root of 1949498816 is about 1249.2259348374.

The spelling of 1949498816 in words is "one billion, nine hundred forty-nine million, four hundred ninety-eight thousand, eight hundred sixteen".