36423918 has 40 divisors (see below), whose sum is σ = 82212240. Its totient is φ = 12052800.

The previous prime is 36423899. The next prime is 36423929. The reversal of 36423918 is 81932463.

36423918 is a `hidden beast` number, since 3 + 642 + 3 + 9 + 1 + 8 = 666.

It is a super-5 number, since 5×36423918⁵ (a number of 39 digits) contains 55555 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 23718 + ... + 25206.

It is an arithmetic number, because the mean of its divisors is an integer number (2055306).

Almost surely, 2^36423918 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 36423918, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41106120).

36423918 is an abundant number, since it is smaller than the sum of its proper divisors (45788322).

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

36423918 is a wasteful number, since it uses less digits than its factorization.

36423918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1654 (or 1645 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 36423918 is about 6035.2231110374. The cubic root of 36423918 is about 331.4837321310.

The spelling of 36423918 in words is "thirty-six million, four hundred twenty-three thousand, nine hundred eighteen".