140312040 has 64 divisors (see below), whose sum is σ = 459207360. Its totient is φ = 34014720.

The previous prime is 140312027. The next prime is 140312047. The reversal of 140312040 is 40213041.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (140312047) 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, 51829 + ... + 54468.

It is an arithmetic number, because the mean of its divisors is an integer number (7175115).

Almost surely, 2^140312040 is an apocalyptic number.

140312040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140312040 is an abundant number, since it is smaller than the sum of its proper divisors (318895320).

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

140312040 is a wasteful number, since it uses less digits than its factorization.

140312040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106322 (or 106318 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 140312040 is about 11845.3383235769. The cubic root of 140312040 is about 519.6349015107.

Adding to 140312040 its reverse (40213041), we get a palindrome (180525081).

The spelling of 140312040 in words is "one hundred forty million, three hundred twelve thousand, forty".