40024290 has 32 divisors (see below), whose sum is σ = 101710080. Its totient is φ = 10045184.

The previous prime is 40024267. The next prime is 40024297. The reversal of 40024290 is 9242004.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (40024297) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38730 + ... + 39749.

It is an arithmetic number, because the mean of its divisors is an integer number (3178440).

Almost surely, 2^40024290 is an apocalyptic number.

40024290 is an abundant number, since it is smaller than the sum of its proper divisors (61685790).

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

40024290 is a wasteful number, since it uses less digits than its factorization.

40024290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78506.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 40024290 is about 6326.4753220099. The cubic root of 40024290 is about 342.0644008539.

Adding to 40024290 its reverse (9242004), we get a palindrome (49266294).

The spelling of 40024290 in words is "forty million, twenty-four thousand, two hundred ninety".