45642254 has 16 divisors (see below), whose sum is σ = 78619776. Its totient is φ = 19467000.

The previous prime is 45642239. The next prime is 45642257. The reversal of 45642254 is 45224654.

It is a self number, because there is not a number n which added to its sum of digits gives 45642254.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45642257) 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, 4772 + ... + 10679.

It is an arithmetic number, because the mean of its divisors is an integer number (4913736).

Almost surely, 2^45642254 is an apocalyptic number.

45642254 is a deficient number, since it is larger than the sum of its proper divisors (32977522).

45642254 is a wasteful number, since it uses less digits than its factorization.

45642254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15671.

The product of its digits is 38400, while the sum is 32.

The square root of 45642254 is about 6755.9051207074. The cubic root of 45642254 is about 357.3735128840.

The spelling of 45642254 in words is "forty-five million, six hundred forty-two thousand, two hundred fifty-four".