140932290 has 16 divisors (see below), whose sum is σ = 338237568. Its totient is φ = 37581936.

The previous prime is 140932283. The next prime is 140932303. The reversal of 140932290 is 92239041.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 4697743 = 140932290 / (1 + 4 + 0 + 9 + 3 + 2 + 2 + 9 + 0).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2348842 + ... + 2348901.

It is an arithmetic number, because the mean of its divisors is an integer number (21139848).

Almost surely, 2^140932290 is an apocalyptic number.

140932290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

140932290 is an abundant number, since it is smaller than the sum of its proper divisors (197305278).

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

140932290 is a wasteful number, since it uses less digits than its factorization.

140932290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4697753.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 140932290 is about 11871.4906393426. The cubic root of 140932290 is about 520.3994588402.

The spelling of 140932290 in words is "one hundred forty million, nine hundred thirty-two thousand, two hundred ninety".