40448892 has 24 divisors (see below), whose sum is σ = 102961152. Its totient is φ = 12257200.

The previous prime is 40448887. The next prime is 40448897. The reversal of 40448892 is 29884404.

It is an interprime number because it is at equal distance from previous prime (40448887) and next prime (40448897).

It is a super-2 number, since 2×40448892² = 3272225728055328, 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 40448892.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40448897) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153084 + ... + 153347.

It is an arithmetic number, because the mean of its divisors is an integer number (4290048).

Almost surely, 2^40448892 is an apocalyptic number.

It is an amenable number.

40448892 is an abundant number, since it is smaller than the sum of its proper divisors (62512260).

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

40448892 is a wasteful number, since it uses less digits than its factorization.

40448892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306449 (or 306447 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 39.

The square root of 40448892 is about 6359.9443393791. The cubic root of 40448892 is about 343.2697575017.

The spelling of 40448892 in words is "forty million, four hundred forty-eight thousand, eight hundred ninety-two".