16117380 has 60 divisors (see below), whose sum is σ = 50565900. Its totient is φ = 4297536.

The previous prime is 16117379. The next prime is 16117397. The reversal of 16117380 is 8371161.

It can be written as a sum of positive squares in 2 ways, for example, as 6081156 + 10036224 = 2466^2 + 3168^2 .

It is a tau number, because it is divible by the number of its divisors (60).

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 19 ways as a sum of consecutive naturals, for example, 3355 + ... + 6594.

It is an arithmetic number, because the mean of its divisors is an integer number (842765).

Almost surely, 2^16117380 is an apocalyptic number.

16117380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16117380 is an abundant number, since it is smaller than the sum of its proper divisors (34448520).

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

16117380 is a wasteful number, since it uses less digits than its factorization.

16117380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9970 (or 9959 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The square root of 16117380 is about 4014.6456879780. The cubic root of 16117380 is about 252.5989155961.

The spelling of 16117380 in words is "sixteen million, one hundred seventeen thousand, three hundred eighty".