45399886 has 16 divisors (see below), whose sum is σ = 78558336. Its totient is φ = 19274616.

The previous prime is 45399883. The next prime is 45399889. The reversal of 45399886 is 68899354.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (45399883) and next prime (45399889).

It is a super-2 number, since 2×45399886² = 4122299297625992, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45399881) 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, 13656 + ... + 16651.

It is an arithmetic number, because the mean of its divisors is an integer number (4909896).

Almost surely, 2^45399886 is an apocalyptic number.

45399886 is a deficient number, since it is larger than the sum of its proper divisors (33158450).

45399886 is a wasteful number, since it uses less digits than its factorization.

45399886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30423.

The product of its digits is 1866240, while the sum is 52.

The square root of 45399886 is about 6737.9437516204. The cubic root of 45399886 is about 356.7398188480.

The spelling of 45399886 in words is "forty-five million, three hundred ninety-nine thousand, eight hundred eighty-six".