74257494 has 8 divisors (see below), whose sum is σ = 148515000. Its totient is φ = 24752496.

The previous prime is 74257489. The next prime is 74257499. The reversal of 74257494 is 49475247.

It is an interprime number because it is at equal distance from previous prime (74257489) and next prime (74257499).

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

74257494 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74257499) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6188119 + ... + 6188130.

It is an arithmetic number, because the mean of its divisors is an integer number (18564375).

Almost surely, 2^74257494 is an apocalyptic number.

74257494 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.

74257494 is a wasteful number, since it uses less digits than its factorization.

74257494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12376254.

The product of its digits is 282240, while the sum is 42.

The square root of 74257494 is about 8617.2788048200. The cubic root of 74257494 is about 420.3200395150.

The spelling of 74257494 in words is "seventy-four million, two hundred fifty-seven thousand, four hundred ninety-four".