140291816 has 32 divisors (see below), whose sum is σ = 302160000. Its totient is φ = 59818176.

The previous prime is 140291813. The next prime is 140291861. The reversal of 140291816 is 618192041.

140291816 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (140291813) 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, 4850 + ... + 17438.

It is an arithmetic number, because the mean of its divisors is an integer number (9442500).

Almost surely, 2^140291816 is an apocalyptic number.

It is an amenable number.

140291816 is an abundant number, since it is smaller than the sum of its proper divisors (161868184).

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

140291816 is a wasteful number, since it uses less digits than its factorization.

140291816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12801 (or 12797 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 32.

The square root of 140291816 is about 11844.4846236550. The cubic root of 140291816 is about 519.6099342991.

The spelling of 140291816 in words is "one hundred forty million, two hundred ninety-one thousand, eight hundred sixteen".