40152244 has 24 divisors (see below), whose sum is σ = 80690400. Its totient is φ = 17290080.

The previous prime is 40152199. The next prime is 40152251. The reversal of 40152244 is 44225104.

It is a happy number.

It is a super-2 number, since 2×40152244² = 3224405396471072, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23179 + ... + 24850.

It is an arithmetic number, because the mean of its divisors is an integer number (3362100).

Almost surely, 2^40152244 is an apocalyptic number.

40152244 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

40152244 is an abundant number, since it is smaller than the sum of its proper divisors (40538156).

40152244 is a wasteful number, since it uses less digits than its factorization.

40152244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48063 (or 48061 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 40152244 is about 6336.5798345795. The cubic root of 40152244 is about 342.4285293177.

Adding to 40152244 its reverse (44225104), we get a palindrome (84377348).

The spelling of 40152244 in words is "forty million, one hundred fifty-two thousand, two hundred forty-four".