1201930872 has 128 divisors (see below), whose sum is σ = 3338496000. Its totient is φ = 358668288.

The previous prime is 1201930817. The next prime is 1201930879. The reversal of 1201930872 is 2780391021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201930879) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3274833 + ... + 3275199.

It is an arithmetic number, because the mean of its divisors is an integer number (26082000).

Almost surely, 2^1201930872 is an apocalyptic number.

1201930872 is a gapful number since it is divisible by the number (12) 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 1201930872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1669248000).

1201930872 is an abundant number, since it is smaller than the sum of its proper divisors (2136565128).

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

1201930872 is a wasteful number, since it uses less digits than its factorization.

1201930872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 765 (or 761 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 1201930872 is about 34668.8746860927. The cubic root of 1201930872 is about 1063.2282242212.

The spelling of 1201930872 in words is "one billion, two hundred one million, nine hundred thirty thousand, eight hundred seventy-two".