1201970916 has 36 divisors (see below), whose sum is σ = 3108977872. Its totient is φ = 391338864.

The previous prime is 1201970893. The next prime is 1201970921. The reversal of 1201970916 is 6190791021.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 386686 + ... + 389781.

Almost surely, 2^1201970916 is an apocalyptic number.

It is an amenable number.

1201970916 is an abundant number, since it is smaller than the sum of its proper divisors (1907006956).

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

1201970916 is a wasteful number, since it uses less digits than its factorization.

1201970916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 776520 (or 776515 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 36.

The square root of 1201970916 is about 34669.4522021909. The cubic root of 1201970916 is about 1063.2400317328.

The spelling of 1201970916 in words is "one billion, two hundred one million, nine hundred seventy thousand, nine hundred sixteen".