19245970 has 16 divisors (see below), whose sum is σ = 35131968. Its totient is φ = 7589680.

The previous prime is 19245893. The next prime is 19245973. The reversal of 19245970 is 7954291.

It is a super-2 number, since 2×19245970² = 740814722481800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (19245973) 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, 12844 + ... + 14263.

It is an arithmetic number, because the mean of its divisors is an integer number (2195748).

Almost surely, 2^19245970 is an apocalyptic number.

19245970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19245970 is a deficient number, since it is larger than the sum of its proper divisors (15885998).

19245970 is a wasteful number, since it uses less digits than its factorization.

19245970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27185.

The product of its (nonzero) digits is 22680, while the sum is 37.

The square root of 19245970 is about 4387.0229085338. The cubic root of 19245970 is about 267.9867168734.

The spelling of 19245970 in words is "nineteen million, two hundred forty-five thousand, nine hundred seventy".