74359440 has 120 divisors (see below), whose sum is σ = 251858880. Its totient is φ = 19660032.

The previous prime is 74359433. The next prime is 74359457. The reversal of 74359440 is 4495347.

It is a tau number, because it is divible by the number of its divisors (120).

It is a super-2 number, since 2×74359440² = 11058652634227200, which contains 22 as substring.

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 = 74359395 and 74359404.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 99709 + ... + 100451.

It is an arithmetic number, because the mean of its divisors is an integer number (2098824).

Almost surely, 2^74359440 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 74359440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125929440).

74359440 is an abundant number, since it is smaller than the sum of its proper divisors (177499440).

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

74359440 is a wasteful number, since it uses less digits than its factorization.

74359440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 901 (or 892 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 74359440 is about 8623.1919844104. The cubic root of 74359440 is about 420.5123000319.

The spelling of 74359440 in words is "seventy-four million, three hundred fifty-nine thousand, four hundred forty".