140299236 has 96 divisors (see below), whose sum is σ = 453519360. Its totient is φ = 36439200.

The previous prime is 140299223. The next prime is 140299261. The reversal of 140299236 is 632992041.

140299236 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 140299236.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 120 + ... + 16751.

It is an arithmetic number, because the mean of its divisors is an integer number (4724160).

Almost surely, 2^140299236 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140299236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (226759680).

140299236 is an abundant number, since it is smaller than the sum of its proper divisors (313220124).

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

140299236 is a wasteful number, since it uses less digits than its factorization.

140299236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16902 (or 16894 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 140299236 is about 11844.7978454679. The cubic root of 140299236 is about 519.6190948185.

The spelling of 140299236 in words is "one hundred forty million, two hundred ninety-nine thousand, two hundred thirty-six".