40252532 has 24 divisors (see below), whose sum is σ = 74889864. Its totient is φ = 18865152.

The previous prime is 40252519. The next prime is 40252547. The reversal of 40252532 is 23525204.

It can be written as a sum of positive squares in 4 ways, for example, as 234256 + 40018276 = 484^2 + 6326^2 .

It is a super-2 number, since 2×40252532² = 3240532664822048, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40252498 and 40252507.

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, 17768 + ... + 19904.

It is an arithmetic number, because the mean of its divisors is an integer number (3120411).

Almost surely, 2^40252532 is an apocalyptic number.

It is an amenable number.

40252532 is a deficient number, since it is larger than the sum of its proper divisors (34637332).

40252532 is a wasteful number, since it uses less digits than its factorization.

40252532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2435 (or 2433 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 40252532 is about 6344.4883166415. The cubic root of 40252532 is about 342.7133861281.

Adding to 40252532 its reverse (23525204), we get a palindrome (63777736).

The spelling of 40252532 in words is "forty million, two hundred fifty-two thousand, five hundred thirty-two".