40169244 has 24 divisors (see below), whose sum is σ = 95050368. Its totient is φ = 13200880.

The previous prime is 40169243. The next prime is 40169257. The reversal of 40169244 is 44296104.

It is a super-2 number, since 2×40169244² = 3227136327063072, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40169243) 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, 22722 + ... + 24425.

It is an arithmetic number, because the mean of its divisors is an integer number (3960432).

Almost surely, 2^40169244 is an apocalyptic number.

It is an amenable number.

40169244 is an abundant number, since it is smaller than the sum of its proper divisors (54881124).

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

40169244 is a wasteful number, since it uses less digits than its factorization.

40169244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47225 (or 47223 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 40169244 is about 6337.9211102695. The cubic root of 40169244 is about 342.4768492708.

The spelling of 40169244 in words is "forty million, one hundred sixty-nine thousand, two hundred forty-four".