19312992 has 60 divisors (see below), whose sum is σ = 56806596. Its totient is φ = 6436800.

The previous prime is 19312973. The next prime is 19313011. The reversal of 19312992 is 29921391.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (19312973) and next prime (19313011).

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

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1134 + ... + 6317.

Almost surely, 2^19312992 is an apocalyptic number.

19312992 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 19312992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28403298).

19312992 is an abundant number, since it is smaller than the sum of its proper divisors (37493604).

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

19312992 is an equidigital number, since it uses as much as digits as its factorization.

19312992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7473 (or 7456 counting only the distinct ones).

The product of its digits is 8748, while the sum is 36.

The square root of 19312992 is about 4394.6549352594. The cubic root of 19312992 is about 268.2974346825.

The spelling of 19312992 in words is "nineteen million, three hundred twelve thousand, nine hundred ninety-two".