40250140 has 24 divisors (see below), whose sum is σ = 96600672. Its totient is φ = 13800000.

The previous prime is 40250137. The next prime is 40250141. The reversal of 40250140 is 4105204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40250141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143611 + ... + 143890.

It is an arithmetic number, because the mean of its divisors is an integer number (4025028).

Almost surely, 2^40250140 is an apocalyptic number.

It is an amenable number.

40250140 is an abundant number, since it is smaller than the sum of its proper divisors (56350532).

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

40250140 is a wasteful number, since it uses less digits than its factorization.

40250140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287517 (or 287515 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 40250140 is about 6344.2998037609. The cubic root of 40250140 is about 342.7065974317.

Adding to 40250140 its reverse (4105204), we get a palindrome (44355344).

The spelling of 40250140 in words is "forty million, two hundred fifty thousand, one hundred forty".