74253480 has 64 divisors (see below), whose sum is σ = 254586240. Its totient is φ = 16972032.

The previous prime is 74253457. The next prime is 74253481. The reversal of 74253480 is 8435247.

It is a super-2 number, since 2×74253480² = 11027158584220800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (74253481) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43359 + ... + 45038.

It is an arithmetic number, because the mean of its divisors is an integer number (3977910).

Almost surely, 2^74253480 is an apocalyptic number.

74253480 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

74253480 is an abundant number, since it is smaller than the sum of its proper divisors (180332760).

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

74253480 is a wasteful number, since it uses less digits than its factorization.

74253480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88418 (or 88414 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 33.

The square root of 74253480 is about 8617.0458975220. The cubic root of 74253480 is about 420.3124658909.

The spelling of 74253480 in words is "seventy-four million, two hundred fifty-three thousand, four hundred eighty".