40990224 has 80 divisors (see below), whose sum is σ = 119545920. Its totient is φ = 11988480.

The previous prime is 40990211. The next prime is 40990237. The reversal of 40990224 is 42209904.

It is an interprime number because it is at equal distance from previous prime (40990211) and next prime (40990237).

It is a junction number, because it is equal to n+sod(n) for n = 40990191 and 40990200.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13974 + ... + 16650.

It is an arithmetic number, because the mean of its divisors is an integer number (1494324).

Almost surely, 2^40990224 is an apocalyptic number.

40990224 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40990224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59772960).

40990224 is an abundant number, since it is smaller than the sum of its proper divisors (78555696).

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

40990224 is a wasteful number, since it uses less digits than its factorization.

40990224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2728 (or 2722 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 40990224 is about 6402.3608145746. The cubic root of 40990224 is about 344.7943155412.

It can be divided in two parts, 40990 and 224, that added together give a palindrome (41214).

The spelling of 40990224 in words is "forty million, nine hundred ninety thousand, two hundred twenty-four".