74909016 has 256 divisors, whose sum is σ = 265574400. Its totient is φ = 19035648.

The previous prime is 74908969. The next prime is 74909027. The reversal of 74909016 is 61090947.

It is a super-2 number, since 2×74909016² = 11222721356176512, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 727221 + ... + 727323.

It is an arithmetic number, because the mean of its divisors is an integer number (1037400).

Almost surely, 2^74909016 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74909016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132787200).

74909016 is an abundant number, since it is smaller than the sum of its proper divisors (190665384).

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

74909016 is a wasteful number, since it uses less digits than its factorization.

74909016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175 (or 165 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 74909016 is about 8654.9994800693. Note that the first 3 decimals coincide. The cubic root of 74909016 is about 421.5457328071.

The spelling of 74909016 in words is "seventy-four million, nine hundred nine thousand, sixteen".