40047776 has 24 divisors (see below), whose sum is σ = 80025120. Its totient is φ = 19723968.

The previous prime is 40047751. The next prime is 40047779. The reversal of 40047776 is 67774004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40047779) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7196 + ... + 11483.

It is an arithmetic number, because the mean of its divisors is an integer number (3334380).

Almost surely, 2^40047776 is an apocalyptic number.

It is an amenable number.

40047776 is a deficient number, since it is larger than the sum of its proper divisors (39977344).

40047776 is a wasteful number, since it uses less digits than its factorization.

40047776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18756 (or 18748 counting only the distinct ones).

The product of its (nonzero) digits is 32928, while the sum is 35.

The square root of 40047776 is about 6328.3312176276. The cubic root of 40047776 is about 342.1312948463.

The spelling of 40047776 in words is "forty million, forty-seven thousand, seven hundred seventy-six".