40002532 has 12 divisors (see below), whose sum is σ = 70509040. Its totient is φ = 19857096.

The previous prime is 40002491. The next prime is 40002559. The reversal of 40002532 is 23520004.

It is a super-2 number, since 2×40002532² = 3200405132822048, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35418 + ... + 36529.

Almost surely, 2^40002532 is an apocalyptic number.

It is an amenable number.

40002532 is a deficient number, since it is larger than the sum of its proper divisors (30506508).

40002532 is a wasteful number, since it uses less digits than its factorization.

40002532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72090 (or 72088 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 40002532 is about 6324.7554893450. The cubic root of 40002532 is about 342.0024052816.

Adding to 40002532 its reverse (23520004), we get a palindrome (63522536).

The spelling of 40002532 in words is "forty million, two thousand, five hundred thirty-two".