40287452 has 12 divisors (see below), whose sum is σ = 71295840. Its totient is φ = 19917216.

The previous prime is 40287451. The next prime is 40287479. The reversal of 40287452 is 25478204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40287451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56228 + ... + 56939.

It is an arithmetic number, because the mean of its divisors is an integer number (5941320).

Almost surely, 2^40287452 is an apocalyptic number.

It is an amenable number.

40287452 is a deficient number, since it is larger than the sum of its proper divisors (31008388).

40287452 is a wasteful number, since it uses less digits than its factorization.

40287452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113260 (or 113258 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 32.

The square root of 40287452 is about 6347.2397150257. The cubic root of 40287452 is about 342.8124614062.

The spelling of 40287452 in words is "forty million, two hundred eighty-seven thousand, four hundred fifty-two".