40777748 has 12 divisors (see below), whose sum is σ = 77848512. Its totient is φ = 18535320.

The previous prime is 40777729. The next prime is 40777757. The reversal of 40777748 is 84777704.

It is a Harshad number since it is a multiple of its sum of digits (44), and also a Moran number because the ratio is a prime number: 926767 = 40777748 / (4 + 0 + 7 + 7 + 7 + 7 + 4 + 8).

It is a junction number, because it is equal to n+sod(n) for n = 40777699 and 40777708.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 463340 + ... + 463427.

It is an arithmetic number, because the mean of its divisors is an integer number (6487376).

Almost surely, 2^40777748 is an apocalyptic number.

It is an amenable number.

40777748 is a deficient number, since it is larger than the sum of its proper divisors (37070764).

40777748 is a wasteful number, since it uses less digits than its factorization.

40777748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 926782 (or 926780 counting only the distinct ones).

The product of its (nonzero) digits is 307328, while the sum is 44.

The square root of 40777748 is about 6385.7456886412. The cubic root of 40777748 is about 344.1975271734.

Subtracting from 40777748 its sum of digits (44), we obtain a palindrome (40777704).

The spelling of 40777748 in words is "forty million, seven hundred seventy-seven thousand, seven hundred forty-eight".