45428986 has 4 divisors (see below), whose sum is σ = 68143482. Its totient is φ = 22714492.

The previous prime is 45428983. The next prime is 45428987. The reversal of 45428986 is 68982454.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 68982454 = 2 ⋅34491227.

It can be written as a sum of positive squares in only one way, i.e., 39450961 + 5978025 = 6281^2 + 2445^2 .

It is not an unprimeable number, because it can be changed into a prime (45428983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11357245 + ... + 11357248.

Almost surely, 2^45428986 is an apocalyptic number.

45428986 is a deficient number, since it is larger than the sum of its proper divisors (22714496).

45428986 is a wasteful number, since it uses less digits than its factorization.

45428986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22714495.

The product of its digits is 552960, while the sum is 46.

The square root of 45428986 is about 6740.1028182069. The cubic root of 45428986 is about 356.8160225013.

The spelling of 45428986 in words is "forty-five million, four hundred twenty-eight thousand, nine hundred eighty-six".