74431001 has 8 divisors (see below), whose sum is σ = 75306504. Its totient is φ = 73560960.

The previous prime is 74430991. The next prime is 74431009. The reversal of 74431001 is 10013447.

It can be written as a sum of positive squares in 4 ways, for example, as 4206601 + 70224400 = 2051^2 + 8380^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 74431001 - 2²² = 70236697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74431009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30125 + ... + 32501.

It is an arithmetic number, because the mean of its divisors is an integer number (9413313).

Almost surely, 2^74431001 is an apocalyptic number.

It is an amenable number.

74431001 is a deficient number, since it is larger than the sum of its proper divisors (875503).

74431001 is a wasteful number, since it uses less digits than its factorization.

74431001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2731.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 74431001 is about 8627.3403201682. The cubic root of 74431001 is about 420.6471523681.

Adding to 74431001 its reverse (10013447), we get a palindrome (84444448).

The spelling of 74431001 in words is "seventy-four million, four hundred thirty-one thousand, one".