18294145940 has 48 divisors (see below), whose sum is σ = 45322281984. Its totient is φ = 6069945600.

The previous prime is 18294145931. The next prime is 18294145963. The reversal of 18294145940 is 4954149281.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2103281 + ... + 2111960.

It is an arithmetic number, because the mean of its divisors is an integer number (944214208).

Almost surely, 2^18294145940 is an apocalyptic number.

18294145940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18294145940 is an abundant number, since it is smaller than the sum of its proper divisors (27028136044).

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

18294145940 is a wasteful number, since it uses less digits than its factorization.

18294145940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4215288 (or 4215286 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 47.

The spelling of 18294145940 in words is "eighteen billion, two hundred ninety-four million, one hundred forty-five thousand, nine hundred forty".