45779438 has 4 divisors (see below), whose sum is σ = 68669160. Its totient is φ = 22889718.

The previous prime is 45779431. The next prime is 45779443. The reversal of 45779438 is 83497754.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 83497754 = 2 ⋅41748877.

It is a junction number, because it is equal to n+sod(n) for n = 45779392 and 45779401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45779431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11444858 + ... + 11444861.

It is an arithmetic number, because the mean of its divisors is an integer number (17167290).

Almost surely, 2^45779438 is an apocalyptic number.

45779438 is a deficient number, since it is larger than the sum of its proper divisors (22889722).

45779438 is a wasteful number, since it uses less digits than its factorization.

45779438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22889721.

The product of its digits is 846720, while the sum is 47.

The square root of 45779438 is about 6766.0503988664. The cubic root of 45779438 is about 357.7311996583.

The spelling of 45779438 in words is "forty-five million, seven hundred seventy-nine thousand, four hundred thirty-eight".