40625240 has 32 divisors (see below), whose sum is σ = 96785280. Its totient is φ = 15293952.

The previous prime is 40625213. The next prime is 40625243. The reversal of 40625240 is 4252604.

40625240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40625243) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 29192 + ... + 30551.

It is an arithmetic number, because the mean of its divisors is an integer number (3024540).

Almost surely, 2^40625240 is an apocalyptic number.

40625240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40625240 is an abundant number, since it is smaller than the sum of its proper divisors (56160040).

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

40625240 is a wasteful number, since it uses less digits than its factorization.

40625240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59771 (or 59767 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 40625240 is about 6373.7932191121. The cubic root of 40625240 is about 343.7678937242.

Adding to 40625240 its reverse (4252604), we get a palindrome (44877844).

The spelling of 40625240 in words is "forty million, six hundred twenty-five thousand, two hundred forty".