18400334070 has 32 divisors (see below), whose sum is σ = 44274353760. Its totient is φ = 4894138880.

The previous prime is 18400334063. The next prime is 18400334089. The reversal of 18400334070 is 7043300481.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 776691 + ... + 800030.

It is an arithmetic number, because the mean of its divisors is an integer number (1383573555).

Almost surely, 2^18400334070 is an apocalyptic number.

18400334070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18400334070 is an abundant number, since it is smaller than the sum of its proper divisors (25874019690).

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

18400334070 is a wasteful number, since it uses less digits than its factorization.

18400334070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1577120.

The product of its (nonzero) digits is 8064, while the sum is 30.

The spelling of 18400334070 in words is "eighteen billion, four hundred million, three hundred thirty-four thousand, seventy".