140323390 has 16 divisors (see below), whose sum is σ = 252726480. Its totient is φ = 56097280.

The previous prime is 140323367. The next prime is 140323399. The reversal of 140323390 is 93323041.

It is a happy number.

140323390 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140323399) 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, 23070 + ... + 28510.

It is an arithmetic number, because the mean of its divisors is an integer number (15795405).

Almost surely, 2^140323390 is an apocalyptic number.

140323390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

140323390 is a deficient number, since it is larger than the sum of its proper divisors (112403090).

140323390 is a wasteful number, since it uses less digits than its factorization.

140323390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8027.

The product of its (nonzero) digits is 1944, while the sum is 25.

The square root of 140323390 is about 11845.8174053123. The cubic root of 140323390 is about 519.6489124184.

The spelling of 140323390 in words is "one hundred forty million, three hundred twenty-three thousand, three hundred ninety".