40102244 has 72 divisors (see below), whose sum is σ = 90138048. Its totient is φ = 15200640.

The previous prime is 40102213. The next prime is 40102253. The reversal of 40102244 is 44220104.

40102244 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 306059 + ... + 306189.

Almost surely, 2^40102244 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40102244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45069024).

40102244 is an abundant number, since it is smaller than the sum of its proper divisors (50035804).

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

40102244 is a wasteful number, since it uses less digits than its factorization.

40102244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213 (or 182 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 40102244 is about 6332.6332595532. The cubic root of 40102244 is about 342.2863327134.

Adding to 40102244 its reverse (44220104), we get a palindrome (84322348).

The spelling of 40102244 in words is "forty million, one hundred two thousand, two hundred forty-four".