19842025 has 12 divisors (see below), whose sum is σ = 28119232. Its totient is φ = 13605840.

The previous prime is 19842007. The next prime is 19842071. The reversal of 19842025 is 52024891.

It is not a de Polignac number, because 19842025 - 2⁵ = 19841993 is a prime.

It is a super-2 number, since 2×19842025² = 787411912201250, which contains 22 as substring.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian 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, 56517 + ... + 56866.

Almost surely, 2^19842025 is an apocalyptic number.

It is an amenable number.

19842025 is a deficient number, since it is larger than the sum of its proper divisors (8277207).

19842025 is a wasteful number, since it uses less digits than its factorization.

19842025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113400 (or 113395 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 19842025 is about 4454.4387974244. The cubic root of 19842025 is about 270.7251881180.

The spelling of 19842025 in words is "nineteen million, eight hundred forty-two thousand, twenty-five".