45684238 has 4 divisors (see below), whose sum is σ = 68526360. Its totient is φ = 22842118.

The previous prime is 45684229. The next prime is 45684239. The reversal of 45684238 is 83248654.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 45684238.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45684239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11421058 + ... + 11421061.

It is an arithmetic number, because the mean of its divisors is an integer number (17131590).

Almost surely, 2^45684238 is an apocalyptic number.

45684238 is a deficient number, since it is larger than the sum of its proper divisors (22842122).

45684238 is a wasteful number, since it uses less digits than its factorization.

45684238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22842121.

The product of its digits is 184320, while the sum is 40.

The square root of 45684238 is about 6759.0116141341. The cubic root of 45684238 is about 357.4830559071.

The spelling of 45684238 in words is "forty-five million, six hundred eighty-four thousand, two hundred thirty-eight".