45949894 has 4 divisors (see below), whose sum is σ = 68924844. Its totient is φ = 22974946.

The previous prime is 45949859. The next prime is 45949909. The reversal of 45949894 is 49894954.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 49894954 = 2 ⋅24947477.

It is a super-2 number, since 2×45949894² = 4222785517222472, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11487472 + ... + 11487475.

It is an arithmetic number, because the mean of its divisors is an integer number (17231211).

Almost surely, 2^45949894 is an apocalyptic number.

45949894 is a deficient number, since it is larger than the sum of its proper divisors (22974950).

45949894 is a wasteful number, since it uses less digits than its factorization.

45949894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22974949.

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

The square root of 45949894 is about 6778.6351133543. The cubic root of 45949894 is about 358.1746440422.

The spelling of 45949894 in words is "forty-five million, nine hundred forty-nine thousand, eight hundred ninety-four".