1969811396 has 48 divisors (see below), whose sum is σ = 4151347200. Its totient is φ = 798929568.

The previous prime is 1969811387. The next prime is 1969811401. The reversal of 1969811396 is 6931189691.

It is a happy number.

It is a super-2 number, since 2×1969811396² = 7760313871622937632, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 860165 + ... + 862451.

It is an arithmetic number, because the mean of its divisors is an integer number (86486400).

Almost surely, 2^1969811396 is an apocalyptic number.

It is an amenable number.

1969811396 is an abundant number, since it is smaller than the sum of its proper divisors (2181535804).

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

1969811396 is a wasteful number, since it uses less digits than its factorization.

1969811396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3936 (or 3934 counting only the distinct ones).

The product of its digits is 629856, while the sum is 53.

The square root of 1969811396 is about 44382.5573395675. The cubic root of 1969811396 is about 1253.5496747855.

The spelling of 1969811396 in words is "one billion, nine hundred sixty-nine million, eight hundred eleven thousand, three hundred ninety-six".