19982470 has 16 divisors (see below), whose sum is σ = 36083088. Its totient is φ = 7967520.

The previous prime is 19982467. The next prime is 19982483. The reversal of 19982470 is 7428991.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 292 + ... + 6328.

It is an arithmetic number, because the mean of its divisors is an integer number (2255193).

Almost surely, 2^19982470 is an apocalyptic number.

19982470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19982470 is a deficient number, since it is larger than the sum of its proper divisors (16100618).

19982470 is a wasteful number, since it uses less digits than its factorization.

19982470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6375.

The product of its (nonzero) digits is 36288, while the sum is 40.

The square root of 19982470 is about 4470.1756117629. The cubic root of 19982470 is about 271.3624322429.

The spelling of 19982470 in words is "nineteen million, nine hundred eighty-two thousand, four hundred seventy".