40310240 has 24 divisors (see below), whose sum is σ = 95233320. Its totient is φ = 16124032.

The previous prime is 40310227. The next prime is 40310287. The reversal of 40310240 is 4201304.

It is a congruent number.

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, 125810 + ... + 126129.

It is an arithmetic number, because the mean of its divisors is an integer number (3968055).

Almost surely, 2^40310240 is an apocalyptic number.

40310240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40310240 is an abundant number, since it is smaller than the sum of its proper divisors (54923080).

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

40310240 is a wasteful number, since it uses less digits than its factorization.

40310240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251954 (or 251946 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 40310240 is about 6349.0345722795. The cubic root of 40310240 is about 342.8770848189.

Adding to 40310240 its reverse (4201304), we get a palindrome (44511544).

The spelling of 40310240 in words is "forty million, three hundred ten thousand, two hundred forty".