40448936 has 16 divisors (see below), whose sum is σ = 82736640. Its totient is φ = 18385840.

The previous prime is 40448923. The next prime is 40448951. The reversal of 40448936 is 63984404.

It is a super-2 number, since 2×40448936² = 3272232847064192, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40448936.

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, 229736 + ... + 229911.

It is an arithmetic number, because the mean of its divisors is an integer number (5171040).

Almost surely, 2^40448936 is an apocalyptic number.

It is an amenable number.

40448936 is an abundant number, since it is smaller than the sum of its proper divisors (42287704).

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

40448936 is a wasteful number, since it uses less digits than its factorization.

40448936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459664 (or 459660 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 38.

The square root of 40448936 is about 6359.9477985279. The cubic root of 40448936 is about 343.2698819704.

The spelling of 40448936 in words is "forty million, four hundred forty-eight thousand, nine hundred thirty-six".