74420001 has 6 divisors (see below), whose sum is σ = 107495570. Its totient is φ = 49613328.

The previous prime is 74419997. The next prime is 74420011. The reversal of 74420001 is 10002447.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 66585600 + 7834401 = 8160^2 + 2799^2 .

It is not a de Polignac number, because 74420001 - 2² = 74419997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74420011) 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, 4134436 + ... + 4134453.

Almost surely, 2^74420001 is an apocalyptic number.

It is an amenable number.

74420001 is a deficient number, since it is larger than the sum of its proper divisors (33075569).

74420001 is a wasteful number, since it uses less digits than its factorization.

74420001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8268895 (or 8268892 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

The square root of 74420001 is about 8626.7027884355. The cubic root of 74420001 is about 420.6264291632.

Adding to 74420001 its reverse (10002447), we get a palindrome (84422448).

The spelling of 74420001 in words is "seventy-four million, four hundred twenty thousand, one".