18283730040 has 48 divisors (see below), whose sum is σ = 59422123800. Its totient is φ = 4875661248.

The previous prime is 18283730029. The next prime is 18283730063. The reversal of 18283730040 is 4003738281.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 18283729977 and 18283730004.

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, 25393710 + ... + 25394429.

Almost surely, 2^18283730040 is an apocalyptic number.

18283730040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18283730040 is an abundant number, since it is smaller than the sum of its proper divisors (41138393760).

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

18283730040 is a wasteful number, since it uses less digits than its factorization.

18283730040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50788156 (or 50788149 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The spelling of 18283730040 in words is "eighteen billion, two hundred eighty-three million, seven hundred thirty thousand, forty".