18413724 has 48 divisors (see below), whose sum is σ = 50803200. Its totient is φ = 5078976.

The previous prime is 18413719. The next prime is 18413741. The reversal of 18413724 is 42731481.

It is a junction number, because it is equal to n+sod(n) for n = 18413691 and 18413700.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1344 + ... + 6215.

It is an arithmetic number, because the mean of its divisors is an integer number (1058400).

Almost surely, 2^18413724 is an apocalyptic number.

18413724 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

18413724 is an abundant number, since it is smaller than the sum of its proper divisors (32389476).

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

18413724 is a wasteful number, since it uses less digits than its factorization.

18413724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7602 (or 7600 counting only the distinct ones).

The product of its digits is 5376, while the sum is 30.

The square root of 18413724 is about 4291.1215317210. The cubic root of 18413724 is about 264.0668448732.

It can be divided in two parts, 1841 and 3724, that added together give a triangular number (5565 = T₁₀₅).

The spelling of 18413724 in words is "eighteen million, four hundred thirteen thousand, seven hundred twenty-four".