74769240 has 256 divisors, whose sum is σ = 284497920. Its totient is φ = 15298560.

The previous prime is 74769229. The next prime is 74769263. The reversal of 74769240 is 4296747.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 447637 + ... + 447803.

It is an arithmetic number, because the mean of its divisors is an integer number (1111320).

Almost surely, 2^74769240 is an apocalyptic number.

74769240 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 74769240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (142248960).

74769240 is an abundant number, since it is smaller than the sum of its proper divisors (209728680).

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

74769240 is a wasteful number, since it uses less digits than its factorization.

74769240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242 (or 238 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 39.

The square root of 74769240 is about 8646.9208392352. The cubic root of 74769240 is about 421.2833760357.

The spelling of 74769240 in words is "seventy-four million, seven hundred sixty-nine thousand, two hundred forty".