1237204992 has 60 divisors (see below), whose sum is σ = 3299243696. Its totient is φ = 412385280.

The previous prime is 1237204981. The next prime is 1237204993. The reversal of 1237204992 is 2994027321.

It is a self number, because there is not a number n which added to its sum of digits gives 1237204992.

It is not an unprimeable number, because it can be changed into a prime (1237204993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36567 + ... + 61737.

Almost surely, 2^1237204992 is an apocalyptic number.

1237204992 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 1237204992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1649621848).

1237204992 is an abundant number, since it is smaller than the sum of its proper divisors (2062038704).

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

1237204992 is an frugal number, since it uses more digits than its factorization.

1237204992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25202 (or 25176 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 1237204992 is about 35173.9248876209. The cubic root of 1237204992 is about 1073.5292646273.

The spelling of 1237204992 in words is "one billion, two hundred thirty-seven million, two hundred four thousand, nine hundred ninety-two".