19931496 has 64 divisors (see below), whose sum is σ = 54102720. Its totient is φ = 6082560.

The previous prime is 19931459. The next prime is 19931521. The reversal of 19931496 is 69413991.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60051 + ... + 60381.

It is an arithmetic number, because the mean of its divisors is an integer number (845355).

Almost surely, 2^19931496 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19931496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27051360).

19931496 is an abundant number, since it is smaller than the sum of its proper divisors (34171224).

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

19931496 is a wasteful number, since it uses less digits than its factorization.

19931496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546 (or 542 counting only the distinct ones).

The product of its digits is 52488, while the sum is 42.

The square root of 19931496 is about 4464.4704053224. The cubic root of 19931496 is about 271.1314930380.

The spelling of 19931496 in words is "nineteen million, nine hundred thirty-one thousand, four hundred ninety-six".