19488970 has 16 divisors (see below), whose sum is σ = 37144008. Its totient is φ = 7336960.

The previous prime is 19488967. The next prime is 19488977. The reversal of 19488970 is 7988491.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 18983449 + 505521 = 4357^2 + 711^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 19488970.

It is not an unprimeable number, because it can be changed into a prime (19488977) 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, 57151 + ... + 57490.

Almost surely, 2^19488970 is an apocalyptic number.

19488970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19488970 is a deficient number, since it is larger than the sum of its proper divisors (17655038).

19488970 is a wasteful number, since it uses less digits than its factorization.

19488970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114665.

The product of its (nonzero) digits is 145152, while the sum is 46.

The square root of 19488970 is about 4414.6313549378. The cubic root of 19488970 is about 269.1098716010.

The spelling of 19488970 in words is "nineteen million, four hundred eighty-eight thousand, nine hundred seventy".