74420901 has 6 divisors (see below), whose sum is σ = 107496870. Its totient is φ = 49613928.

The previous prime is 74420897. The next prime is 74420953. The reversal of 74420901 is 10902447.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 74390625 + 30276 = 8625^2 + 174^2 .

It is not a de Polignac number, because 74420901 - 2² = 74420897 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74420971) 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, 4134486 + ... + 4134503.

It is an arithmetic number, because the mean of its divisors is an integer number (17916145).

Almost surely, 2^74420901 is an apocalyptic number.

It is an amenable number.

74420901 is a deficient number, since it is larger than the sum of its proper divisors (33075969).

74420901 is a wasteful number, since it uses less digits than its factorization.

74420901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8268995 (or 8268992 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 74420901 is about 8626.7549518924. The cubic root of 74420901 is about 420.6281247749.

The spelling of 74420901 in words is "seventy-four million, four hundred twenty thousand, nine hundred one".