40432252 has 36 divisors (see below), whose sum is σ = 85896720. Its totient is φ = 16572864.

The previous prime is 40432237. The next prime is 40432303. The reversal of 40432252 is 25223404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24 + ... + 8992.

It is an arithmetic number, because the mean of its divisors is an integer number (2386020).

Almost surely, 2^40432252 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 40432252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42948360).

40432252 is an abundant number, since it is smaller than the sum of its proper divisors (45464468).

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

40432252 is a wasteful number, since it uses less digits than its factorization.

40432252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9010 (or 9001 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 40432252 is about 6358.6360172603. The cubic root of 40432252 is about 343.2226792264. Note that the first 3 decimals are identical.

Adding to 40432252 its reverse (25223404), we get a palindrome (65655656).

It can be divided in two parts, 40432 and 252, that multiplied together give a square (10188864 = 3192²).

The spelling of 40432252 in words is "forty million, four hundred thirty-two thousand, two hundred fifty-two".