19479470 has 24 divisors (see below), whose sum is σ = 36248472. Its totient is φ = 7536720.

The previous prime is 19479451. The next prime is 19479487. The reversal of 19479470 is 7497491.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8597 + ... + 10623.

It is an arithmetic number, because the mean of its divisors is an integer number (1510353).

Almost surely, 2^19479470 is an apocalyptic number.

19479470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19479470 is a deficient number, since it is larger than the sum of its proper divisors (16769002).

19479470 is a wasteful number, since it uses less digits than its factorization.

19479470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2096 (or 2065 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 41.

The square root of 19479470 is about 4413.5552562532. Note that the first 3 decimals coincide. The cubic root of 19479470 is about 269.0661381577.

The spelling of 19479470 in words is "nineteen million, four hundred seventy-nine thousand, four hundred seventy".