18419796 has 36 divisors (see below), whose sum is σ = 47092500. Its totient is φ = 6069888.

The previous prime is 18419773. The next prime is 18419813. The reversal of 18419796 is 69791481.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1527696 + 16892100 = 1236^2 + 4110^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent 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, 330 + ... + 6078.

It is an arithmetic number, because the mean of its divisors is an integer number (1308125).

Almost surely, 2^18419796 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18419796, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23546250).

18419796 is an abundant number, since it is smaller than the sum of its proper divisors (28672704).

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

18419796 is a wasteful number, since it uses less digits than its factorization.

18419796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5848 (or 5843 counting only the distinct ones).

The product of its digits is 108864, while the sum is 45.

The square root of 18419796 is about 4291.8289807493. The cubic root of 18419796 is about 264.0958673869.

It can be divided in two parts, 18 and 419796, that multiplied together give a triangular number (7556328 = T₃₈₈₇).

The spelling of 18419796 in words is "eighteen million, four hundred nineteen thousand, seven hundred ninety-six".