40287750 has 32 divisors (see below), whose sum is σ = 100560096. Its totient is φ = 10743200.

The previous prime is 40287713. The next prime is 40287781. The reversal of 40287750 is 5778204.

40287750 is nontrivially palindromic in base 7.

40287750 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26109 + ... + 27608.

It is an arithmetic number, because the mean of its divisors is an integer number (3142503).

Almost surely, 2^40287750 is an apocalyptic number.

40287750 is an abundant number, since it is smaller than the sum of its proper divisors (60272346).

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

40287750 is a wasteful number, since it uses less digits than its factorization.

40287750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53737 (or 53727 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 33.

The square root of 40287750 is about 6347.2631897535. The cubic root of 40287750 is about 342.8133066475.

The spelling of 40287750 in words is "forty million, two hundred eighty-seven thousand, seven hundred fifty".