19442850 has 48 divisors (see below), whose sum is σ = 55109568. Its totient is φ = 4443840.

The previous prime is 19442831. The next prime is 19442867. The reversal of 19442850 is 5824491.

It is a super-2 number, since 2×19442850² = 756048832245000, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8209 + ... + 10308.

It is an arithmetic number, because the mean of its divisors is an integer number (1148116).

Almost surely, 2^19442850 is an apocalyptic number.

19442850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19442850 is an abundant number, since it is smaller than the sum of its proper divisors (35666718).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19442850 is a wasteful number, since it uses less digits than its factorization.

19442850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18539 (or 18534 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 19442850 is about 4409.4047217283. The cubic root of 19442850 is about 268.8974240727.

The spelling of 19442850 in words is "nineteen million, four hundred forty-two thousand, eight hundred fifty".