40449772 has 12 divisors (see below), whose sum is σ = 77222376. Its totient is φ = 18386240.

The previous prime is 40449743. The next prime is 40449833. The reversal of 40449772 is 27794404.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 459613 + ... + 459700.

It is an arithmetic number, because the mean of its divisors is an integer number (6435198).

Almost surely, 2^40449772 is an apocalyptic number.

It is an amenable number.

40449772 is a deficient number, since it is larger than the sum of its proper divisors (36772604).

40449772 is a wasteful number, since it uses less digits than its factorization.

40449772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 919328 (or 919326 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 37.

The square root of 40449772 is about 6360.0135219982. The cubic root of 40449772 is about 343.2722468587.

It can be divided in two parts, 404 and 49772, that added together give a square (50176 = 224²).

The spelling of 40449772 in words is "forty million, four hundred forty-nine thousand, seven hundred seventy-two".