74274641 has 6 divisors (see below), whose sum is σ = 86401170. Its totient is φ = 63663936.

The previous prime is 74274623. The next prime is 74274643. The reversal of 74274641 is 14647247.

It can be written as a sum of positive squares in only one way, i.e., 59290000 + 14984641 = 7700^2 + 3871^2 .

It is not a de Polignac number, because 74274641 - 2²⁶ = 7165777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74274643) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 757856 + ... + 757953.

It is an arithmetic number, because the mean of its divisors is an integer number (14400195).

Almost surely, 2^74274641 is an apocalyptic number.

It is an amenable number.

74274641 is a deficient number, since it is larger than the sum of its proper divisors (12126529).

74274641 is a wasteful number, since it uses less digits than its factorization.

74274641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1515823 (or 1515816 counting only the distinct ones).

The product of its digits is 37632, while the sum is 35.

The square root of 74274641 is about 8618.2736670403. The cubic root of 74274641 is about 420.3523894398.

The spelling of 74274641 in words is "seventy-four million, two hundred seventy-four thousand, six hundred forty-one".