140790990 has 16 divisors (see below), whose sum is σ = 337898448. Its totient is φ = 37544256.

The previous prime is 140790971. The next prime is 140790997. The reversal of 140790990 is 99097041.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140790997) 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, 2346487 + ... + 2346546.

It is an arithmetic number, because the mean of its divisors is an integer number (21118653).

Almost surely, 2^140790990 is an apocalyptic number.

140790990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

140790990 is an abundant number, since it is smaller than the sum of its proper divisors (197107458).

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

140790990 is a wasteful number, since it uses less digits than its factorization.

140790990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4693043.

The product of its (nonzero) digits is 20412, while the sum is 39.

The square root of 140790990 is about 11865.5379144816. The cubic root of 140790990 is about 520.2254816014.

The spelling of 140790990 in words is "one hundred forty million, seven hundred ninety thousand, nine hundred ninety".