74252478 has 8 divisors (see below), whose sum is σ = 148504968. Its totient is φ = 24750824.

The previous prime is 74252467. The next prime is 74252501. The reversal of 74252478 is 87425247.

It is a sphenic number, since it is the product of 3 distinct primes.

74252478 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6187701 + ... + 6187712.

It is an arithmetic number, because the mean of its divisors is an integer number (18563121).

Almost surely, 2^74252478 is an apocalyptic number.

74252478 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

74252478 is a wasteful number, since it uses less digits than its factorization.

74252478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12375418.

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

The square root of 74252478 is about 8616.9877567512. The cubic root of 74252478 is about 420.3105752725.

The spelling of 74252478 in words is "seventy-four million, two hundred fifty-two thousand, four hundred seventy-eight".