18052049400 has 192 divisors, whose sum is σ = 69770177280. Its totient is φ = 3751065600.

The previous prime is 18052049291. The next prime is 18052049419. The reversal of 18052049400 is 494025081.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 149169 + ... + 241568.

It is an arithmetic number, because the mean of its divisors is an integer number (363386340).

Almost surely, 2^18052049400 is an apocalyptic number.

18052049400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18052049400 is an abundant number, since it is smaller than the sum of its proper divisors (51718127880).

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

18052049400 is a wasteful number, since it uses less digits than its factorization.

18052049400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390774 (or 390765 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The spelling of 18052049400 in words is "eighteen billion, fifty-two million, forty-nine thousand, four hundred".