19482921 has 12 divisors (see below), whose sum is σ = 28619760. Its totient is φ = 12768120.

The previous prime is 19482919. The next prime is 19482937. The reversal of 19482921 is 12928491.

It is not a de Polignac number, because 19482921 - 2¹ = 19482919 is a prime.

It is not an unprimeable number, because it can be changed into a prime (19482941) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17815 + ... + 18876.

It is an arithmetic number, because the mean of its divisors is an integer number (2384980).

Almost surely, 2^19482921 is an apocalyptic number.

It is an amenable number.

19482921 is a deficient number, since it is larger than the sum of its proper divisors (9136839).

19482921 is a wasteful number, since it uses less digits than its factorization.

19482921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36756 (or 36753 counting only the distinct ones).

The product of its digits is 10368, while the sum is 36.

The square root of 19482921 is about 4413.9461936005. The cubic root of 19482921 is about 269.0820265505.

The spelling of 19482921 in words is "nineteen million, four hundred eighty-two thousand, nine hundred twenty-one".