16117974 has 32 divisors (see below), whose sum is σ = 36432000. Its totient is φ = 5280552.

The previous prime is 16117973. The next prime is 16117979. The reversal of 16117974 is 47971161.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16117973) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 657 + ... + 5715.

It is an arithmetic number, because the mean of its divisors is an integer number (1138500).

Almost surely, 2^16117974 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16117974, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18216000).

16117974 is an abundant number, since it is smaller than the sum of its proper divisors (20314026).

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

16117974 is a wasteful number, since it uses less digits than its factorization.

16117974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5129 (or 5123 counting only the distinct ones).

The product of its digits is 10584, while the sum is 36.

The square root of 16117974 is about 4014.7196664275. The cubic root of 16117974 is about 252.6020187041.

The spelling of 16117974 in words is "sixteen million, one hundred seventeen thousand, nine hundred seventy-four".