45299893 has 4 divisors (see below), whose sum is σ = 45499680. Its totient is φ = 45100108.

The previous prime is 45299879. The next prime is 45299921. The reversal of 45299893 is 39899254.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 39899254 = 2 ⋅19949627.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45299893 is a prime.

It is a super-2 number, since 2×45299893² = 4104160611622898, which contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45299833) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99553 + ... + 100006.

It is an arithmetic number, because the mean of its divisors is an integer number (11374920).

Almost surely, 2^45299893 is an apocalyptic number.

It is an amenable number.

45299893 is a deficient number, since it is larger than the sum of its proper divisors (199787).

45299893 is a wasteful number, since it uses less digits than its factorization.

45299893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199786.

The product of its digits is 699840, while the sum is 49.

The square root of 45299893 is about 6730.5195193239. The cubic root of 45299893 is about 356.4777204987.

The spelling of 45299893 in words is "forty-five million, two hundred ninety-nine thousand, eight hundred ninety-three".