74386480 has 40 divisors (see below), whose sum is σ = 197656992. Its totient is φ = 25503744.

The previous prime is 74386471. The next prime is 74386483. The reversal of 74386480 is 8468347.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (74386483) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 65857 + ... + 66976.

Almost surely, 2^74386480 is an apocalyptic number.

74386480 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

74386480 is an abundant number, since it is smaller than the sum of its proper divisors (123270512).

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

74386480 is a wasteful number, since it uses less digits than its factorization.

74386480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132853 (or 132847 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 40.

The square root of 74386480 is about 8624.7597067976. The cubic root of 74386480 is about 420.5632654265.

The spelling of 74386480 in words is "seventy-four million, three hundred eighty-six thousand, four hundred eighty".