1201936580 has 96 divisors (see below), whose sum is σ = 2872920960. Its totient is φ = 418728960.

The previous prime is 1201936577. The next prime is 1201936609. The reversal of 1201936580 is 856391021.

It is a self number, because there is not a number n which added to its sum of digits gives 1201936580.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2306720 + ... + 2307240.

It is an arithmetic number, because the mean of its divisors is an integer number (29926260).

Almost surely, 2^1201936580 is an apocalyptic number.

1201936580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1201936580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1436460480).

1201936580 is an abundant number, since it is smaller than the sum of its proper divisors (1670984380).

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

1201936580 is a wasteful number, since it uses less digits than its factorization.

1201936580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1029 (or 1027 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 35.

The square root of 1201936580 is about 34668.9570076747. The cubic root of 1201936580 is about 1063.2299073177.

The spelling of 1201936580 in words is "one billion, two hundred one million, nine hundred thirty-six thousand, five hundred eighty".