16180074 has 20 divisors (see below), whose sum is σ = 36255714. Its totient is φ = 5393304.

The previous prime is 16180037. The next prime is 16180091. The reversal of 16180074 is 47008161.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 12006225 + 4173849 = 3465^2 + 2043^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 49777 + ... + 50100.

Almost surely, 2^16180074 is an apocalyptic number.

16180074 is an abundant number, since it is smaller than the sum of its proper divisors (20075640).

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

16180074 is an equidigital number, since it uses as much as digits as its factorization.

16180074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99891 (or 99882 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 16180074 is about 4022.4462706169. The cubic root of 16180074 is about 252.9260148093.

The spelling of 16180074 in words is "sixteen million, one hundred eighty thousand, seventy-four".