19492680 has 32 divisors (see below), whose sum is σ = 58478400. Its totient is φ = 5198016.

The previous prime is 19492663. The next prime is 19492687. The reversal of 19492680 is 8629491.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (19492687) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81100 + ... + 81339.

It is an arithmetic number, because the mean of its divisors is an integer number (1827450).

Almost surely, 2^19492680 is an apocalyptic number.

19492680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19492680 is an abundant number, since it is smaller than the sum of its proper divisors (38985720).

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

19492680 is a wasteful number, since it uses less digits than its factorization.

19492680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162453 (or 162449 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 39.

The square root of 19492680 is about 4415.0515285781. The cubic root of 19492680 is about 269.1269468026.

The spelling of 19492680 in words is "nineteen million, four hundred ninety-two thousand, six hundred eighty".