74454870 has 64 divisors (see below), whose sum is σ = 210825216. Its totient is φ = 16467840.

The previous prime is 74454859. The next prime is 74454881. The reversal of 74454870 is 7845447.

It is an interprime number because it is at equal distance from previous prime (74454859) and next prime (74454881).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 792 + ... + 12228.

It is an arithmetic number, because the mean of its divisors is an integer number (3294144).

Almost surely, 2^74454870 is an apocalyptic number.

74454870 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 74454870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105412608).

74454870 is an abundant number, since it is smaller than the sum of its proper divisors (136370346).

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

74454870 is a wasteful number, since it uses less digits than its factorization.

74454870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11485.

The product of its (nonzero) digits is 125440, while the sum is 39.

The square root of 74454870 is about 8628.7235440707. The cubic root of 74454870 is about 420.6921128176.

The spelling of 74454870 in words is "seventy-four million, four hundred fifty-four thousand, eight hundred seventy".