140592090 has 32 divisors (see below), whose sum is σ = 338685696. Its totient is φ = 37350720.

The previous prime is 140592071. The next prime is 140592097. The reversal of 140592090 is 90295041.

It is a happy number.

It is a super-2 number, since 2×140592090² = 39532271541136200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (140592097) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 517 + ... + 16776.

It is an arithmetic number, because the mean of its divisors is an integer number (10583928).

Almost surely, 2^140592090 is an apocalyptic number.

140592090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

140592090 is an abundant number, since it is smaller than the sum of its proper divisors (198093606).

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

140592090 is a wasteful number, since it uses less digits than its factorization.

140592090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17574.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 140592090 is about 11857.1535370004. The cubic root of 140592090 is about 519.9803863411.

The spelling of 140592090 in words is "one hundred forty million, five hundred ninety-two thousand, ninety".