74953340 has 144 divisors (see below), whose sum is σ = 212012640. Its totient is φ = 21934080.

The previous prime is 74953339. The next prime is 74953363. The reversal of 74953340 is 4335947.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 74953340.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 183056 + ... + 183464.

It is an arithmetic number, because the mean of its divisors is an integer number (1472310).

Almost surely, 2^74953340 is an apocalyptic number.

74953340 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74953340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106006320).

74953340 is an abundant number, since it is smaller than the sum of its proper divisors (137059300).

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

74953340 is a wasteful number, since it uses less digits than its factorization.

74953340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460 (or 451 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 35.

The square root of 74953340 is about 8657.5597023642. The cubic root of 74953340 is about 421.6288599125.

The spelling of 74953340 in words is "seventy-four million, nine hundred fifty-three thousand, three hundred forty".