74275740 has 288 divisors, whose sum is σ = 294368256. Its totient is φ = 14699520.

The previous prime is 74275739. The next prime is 74275759. The reversal of 74275740 is 4757247.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 74275695 and 74275704.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 318664 + ... + 318896.

It is an arithmetic number, because the mean of its divisors is an integer number (1022112).

Almost surely, 2^74275740 is an apocalyptic number.

74275740 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 74275740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147184128).

74275740 is an abundant number, since it is smaller than the sum of its proper divisors (220092516).

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

74275740 is a wasteful number, since it uses less digits than its factorization.

74275740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289 (or 284 counting only the distinct ones).

The product of its (nonzero) digits is 54880, while the sum is 36.

The square root of 74275740 is about 8618.3374266734. The cubic root of 74275740 is about 420.3544626687.

The spelling of 74275740 in words is "seventy-four million, two hundred seventy-five thousand, seven hundred forty".