1816400058 has 16 divisors (see below), whose sum is σ = 3963054816. Its totient is φ = 550424240.

The previous prime is 1816400011. The next prime is 1816400107. The reversal of 1816400058 is 8500046181.

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

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13760541 + ... + 13760672.

It is an arithmetic number, because the mean of its divisors is an integer number (247690926).

Almost surely, 2^1816400058 is an apocalyptic number.

1816400058 is an abundant number, since it is smaller than the sum of its proper divisors (2146654758).

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

1816400058 is a wasteful number, since it uses less digits than its factorization.

1816400058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27521229.

The product of its (nonzero) digits is 7680, while the sum is 33.

The square root of 1816400058 is about 42619.2451599040. The cubic root of 1816400058 is about 1220.1236231442.

The spelling of 1816400058 in words is "one billion, eight hundred sixteen million, four hundred thousand, fifty-eight".