140043390 has 16 divisors (see below), whose sum is σ = 336104208. Its totient is φ = 37344896.

The previous prime is 140043377. The next prime is 140043391. The reversal of 140043390 is 93340041.

140043390 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×140043390² = 39224302165384200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 140043390.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140043391) 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, 2334027 + ... + 2334086.

It is an arithmetic number, because the mean of its divisors is an integer number (21006513).

Almost surely, 2^140043390 is an apocalyptic number.

140043390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

140043390 is an abundant number, since it is smaller than the sum of its proper divisors (196060818).

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

140043390 is a wasteful number, since it uses less digits than its factorization.

140043390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4668123.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 140043390 is about 11833.9929863086. The cubic root of 140043390 is about 519.3030480535.

The spelling of 140043390 in words is "one hundred forty million, forty-three thousand, three hundred ninety".