140469394 has 32 divisors (see below), whose sum is σ = 240327360. Its totient is φ = 61041600.

The previous prime is 140469391. The next prime is 140469421. The reversal of 140469394 is 493964041.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (140469391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88629 + ... + 90199.

It is an arithmetic number, because the mean of its divisors is an integer number (7510230).

Almost surely, 2^140469394 is an apocalyptic number.

140469394 is a deficient number, since it is larger than the sum of its proper divisors (99857966).

140469394 is a wasteful number, since it uses less digits than its factorization.

140469394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1786.

The product of its (nonzero) digits is 93312, while the sum is 40.

The square root of 140469394 is about 11851.9784846244. The cubic root of 140469394 is about 519.8290784404.

The spelling of 140469394 in words is "one hundred forty million, four hundred sixty-nine thousand, three hundred ninety-four".