74227545 has 48 divisors (see below), whose sum is σ = 149490432. Its totient is φ = 33367680.

The previous prime is 74227537. The next prime is 74227561. The reversal of 74227545 is 54572247.

It is a happy number.

It is not a de Polignac number, because 74227545 - 2³ = 74227537 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 17284 + ... + 21146.

It is an arithmetic number, because the mean of its divisors is an integer number (3114384).

Almost surely, 2^74227545 is an apocalyptic number.

It is an amenable number.

74227545 is an abundant number, since it is smaller than the sum of its proper divisors (75262887).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

74227545 is a wasteful number, since it uses less digits than its factorization.

74227545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3942 (or 3939 counting only the distinct ones).

The product of its digits is 78400, while the sum is 36.

The square root of 74227545 is about 8615.5409000248. The cubic root of 74227545 is about 420.2635250952.

The spelling of 74227545 in words is "seventy-four million, two hundred twenty-seven thousand, five hundred forty-five".