44778242 has 4 divisors (see below), whose sum is σ = 67167366. Its totient is φ = 22389120.

The previous prime is 44778203. The next prime is 44778259. The reversal of 44778242 is 24287744.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 37319881 + 7458361 = 6109^2 + 2731^2 .

It is a super-2 number, since 2×44778242² = 4010181913221128, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 44778196 and 44778205.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11194559 + ... + 11194562.

Almost surely, 2^44778242 is an apocalyptic number.

44778242 is a deficient number, since it is larger than the sum of its proper divisors (22389124).

44778242 is a wasteful number, since it uses less digits than its factorization.

44778242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22389123.

The product of its digits is 100352, while the sum is 38.

The square root of 44778242 is about 6691.6546533724. The cubic root of 44778242 is about 355.1040943171.

The spelling of 44778242 in words is "forty-four million, seven hundred seventy-eight thousand, two hundred forty-two".