18606040 has 16 divisors (see below), whose sum is σ = 41863680. Its totient is φ = 7442400.

The previous prime is 18606017. The next prime is 18606043. The reversal of 18606040 is 4060681.

It is a junction number, because it is equal to n+sod(n) for n = 18605996 and 18606014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18606043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 232536 + ... + 232615.

It is an arithmetic number, because the mean of its divisors is an integer number (2616480).

Almost surely, 2^18606040 is an apocalyptic number.

18606040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18606040 is an abundant number, since it is smaller than the sum of its proper divisors (23257640).

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

18606040 is a wasteful number, since it uses less digits than its factorization.

18606040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465162 (or 465158 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 18606040 is about 4313.4719194635. The cubic root of 18606040 is about 264.9829821752.

The spelling of 18606040 in words is "eighteen million, six hundred six thousand, forty".