140090394 has 16 divisors (see below), whose sum is σ = 282661632. Its totient is φ = 46283328.

The previous prime is 140090371. The next prime is 140090417. The reversal of 140090394 is 493090041.

It is an interprime number because it is at equal distance from previous prime (140090371) and next prime (140090417).

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, 102634 + ... + 103989.

It is an arithmetic number, because the mean of its divisors is an integer number (17666352).

Almost surely, 2^140090394 is an apocalyptic number.

140090394 is an abundant number, since it is smaller than the sum of its proper divisors (142571238).

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

140090394 is a wasteful number, since it uses less digits than its factorization.

140090394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206741.

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

The square root of 140090394 is about 11835.9787934923. The cubic root of 140090394 is about 519.3611409776.

The spelling of 140090394 in words is "one hundred forty million, ninety thousand, three hundred ninety-four".