44778740 has 12 divisors (see below), whose sum is σ = 94035396. Its totient is φ = 17911488.

The previous prime is 44778689. The next prime is 44778761. The reversal of 44778740 is 4787744.

44778740 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 19114384 + 25664356 = 4372^2 + 5066^2 .

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1119449 + ... + 1119488.

It is an arithmetic number, because the mean of its divisors is an integer number (7836283).

Almost surely, 2^44778740 is an apocalyptic number.

It is an amenable number.

44778740 is an abundant number, since it is smaller than the sum of its proper divisors (49256656).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

44778740 is a wasteful number, since it uses less digits than its factorization.

44778740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2238946 (or 2238944 counting only the distinct ones).

The product of its (nonzero) digits is 175616, while the sum is 41.

The square root of 44778740 is about 6691.6918637965. The cubic root of 44778740 is about 355.1054107390.

The spelling of 44778740 in words is "forty-four million, seven hundred seventy-eight thousand, seven hundred forty".