18419952 has 40 divisors (see below), whose sum is σ = 49123840. Its totient is φ = 5941440.

The previous prime is 18419927. The next prime is 18419963. The reversal of 18419952 is 25991481.

It is a self number, because there is not a number n which added to its sum of digits gives 18419952.

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, 4702 + ... + 7677.

It is an arithmetic number, because the mean of its divisors is an integer number (1228096).

Almost surely, 2^18419952 is an apocalyptic number.

18419952 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18419952 is an abundant number, since it is smaller than the sum of its proper divisors (30703888).

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

18419952 is a wasteful number, since it uses less digits than its factorization.

18419952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12421 (or 12415 counting only the distinct ones).

The product of its digits is 25920, while the sum is 39.

The square root of 18419952 is about 4291.8471547808. The cubic root of 18419952 is about 264.0966129406.

The spelling of 18419952 in words is "eighteen million, four hundred nineteen thousand, nine hundred fifty-two".