40103244 has 72 divisors (see below), whose sum is σ = 104832000. Its totient is φ = 12920544.

The previous prime is 40103233. The next prime is 40103249. The reversal of 40103244 is 44230104.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40103249) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 167677 + ... + 167915.

It is an arithmetic number, because the mean of its divisors is an integer number (1456000).

Almost surely, 2^40103244 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 40103244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52416000).

40103244 is an abundant number, since it is smaller than the sum of its proper divisors (64728756).

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

40103244 is a wasteful number, since it uses less digits than its factorization.

40103244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387 (or 382 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 40103244 is about 6332.7122151571. The cubic root of 40103244 is about 342.2891778034.

Adding to 40103244 its reverse (44230104), we get a palindrome (84333348).

The spelling of 40103244 in words is "forty million, one hundred three thousand, two hundred forty-four".