74146512 has 120 divisors (see below), whose sum is σ = 221101920. Its totient is φ = 21231360.

The previous prime is 74146489. The next prime is 74146519. The reversal of 74146512 is 21564147.

It is a super-2 number, since 2×74146512² = 10995410483532288, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 74146512.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74146519) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 190414 + ... + 190802.

It is an arithmetic number, because the mean of its divisors is an integer number (1842516).

Almost surely, 2^74146512 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 74146512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110550960).

74146512 is an abundant number, since it is smaller than the sum of its proper divisors (146955408).

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

74146512 is a wasteful number, since it uses less digits than its factorization.

74146512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449 (or 424 counting only the distinct ones).

The product of its digits is 6720, while the sum is 30.

The square root of 74146512 is about 8610.8368931248. The cubic root of 74146512 is about 420.1105377990.

The spelling of 74146512 in words is "seventy-four million, one hundred forty-six thousand, five hundred twelve".