74355457 has 8 divisors (see below), whose sum is σ = 82841472. Its totient is φ = 66157200.

The previous prime is 74355443. The next prime is 74355473. The reversal of 74355457 is 75455347.

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

It is a de Polignac number, because none of the positive numbers 2^k-74355457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74355257) 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, 71394 + ... + 72427.

It is an arithmetic number, because the mean of its divisors is an integer number (10355184).

Almost surely, 2^74355457 is an apocalyptic number.

It is an amenable number.

74355457 is a deficient number, since it is larger than the sum of its proper divisors (8486015).

74355457 is a wasteful number, since it uses less digits than its factorization.

74355457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143879.

The product of its digits is 294000, while the sum is 40.

The square root of 74355457 is about 8622.9610343547. The cubic root of 74355457 is about 420.5047917702.

The spelling of 74355457 in words is "seventy-four million, three hundred fifty-five thousand, four hundred fifty-seven".