74152890 has 48 divisors (see below), whose sum is σ = 220341888. Its totient is φ = 16949088.

The previous prime is 74152879. The next prime is 74152901. The reversal of 74152890 is 9825147.

74152890 is a `hidden beast` number, since 7 + 41 + 528 + 90 = 666.

It is an interprime number because it is at equal distance from previous prime (74152879) and next prime (74152901).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 58222 + ... + 59481.

It is an arithmetic number, because the mean of its divisors is an integer number (4590456).

Almost surely, 2^74152890 is an apocalyptic number.

74152890 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

74152890 is an abundant number, since it is smaller than the sum of its proper divisors (146188998).

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

74152890 is a wasteful number, since it uses less digits than its factorization.

74152890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117723 (or 117720 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 74152890 is about 8611.2072324384. The cubic root of 74152890 is about 420.1225832664.

The spelling of 74152890 in words is "seventy-four million, one hundred fifty-two thousand, eight hundred ninety".