40430244 has 12 divisors (see below), whose sum is σ = 94337264. Its totient is φ = 13476744.

The previous prime is 40430239. The next prime is 40430249. The reversal of 40430244 is 44203404.

It is an interprime number because it is at equal distance from previous prime (40430239) and next prime (40430249).

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 40430244.

It is not an unprimeable number, because it can be changed into a prime (40430249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1684582 + ... + 1684605.

Almost surely, 2^40430244 is an apocalyptic number.

It is an amenable number.

40430244 is an abundant number, since it is smaller than the sum of its proper divisors (53907020).

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

40430244 is a wasteful number, since it uses less digits than its factorization.

40430244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3369194 (or 3369192 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 21.

The square root of 40430244 is about 6358.4781198019. The cubic root of 40430244 is about 343.2169972727.

Adding to 40430244 its reverse (44203404), we get a palindrome (84633648).

The spelling of 40430244 in words is "forty million, four hundred thirty thousand, two hundred forty-four".