74227455 has 16 divisors (see below), whose sum is σ = 131960160. Its totient is φ = 39587904.

The previous prime is 74227453. The next prime is 74227499. The reversal of 74227455 is 55472247.

It is a happy number.

It is not a de Polignac number, because 74227455 - 2¹ = 74227453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74227453) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 274782 + ... + 275051.

It is an arithmetic number, because the mean of its divisors is an integer number (8247510).

Almost surely, 2^74227455 is an apocalyptic number.

74227455 is a deficient number, since it is larger than the sum of its proper divisors (57732705).

74227455 is a wasteful number, since it uses less digits than its factorization.

74227455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 549847 (or 549841 counting only the distinct ones).

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

The square root of 74227455 is about 8615.5356769037. The cubic root of 74227455 is about 420.2633552404.

It can be divided in two parts, 74 and 227455, that added together give a square (227529 = 477²).

The spelling of 74227455 in words is "seventy-four million, two hundred twenty-seven thousand, four hundred fifty-five".