140404046 has 8 divisors (see below), whose sum is σ = 210689904. Its totient is φ = 70174080.

The previous prime is 140404021. The next prime is 140404079. The reversal of 140404046 is 640404041.

140404046 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×140404046² = 39426592266340232, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6995 + ... + 18158.

It is an arithmetic number, because the mean of its divisors is an integer number (26336238).

Almost surely, 2^140404046 is an apocalyptic number.

140404046 is a deficient number, since it is larger than the sum of its proper divisors (70285858).

140404046 is a wasteful number, since it uses less digits than its factorization.

140404046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27946.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 140404046 is about 11849.2213246272. The cubic root of 140404046 is about 519.7484557540.

Adding to 140404046 its reverse (640404041), we get a palindrome (780808087).

The spelling of 140404046 in words is "one hundred forty million, four hundred four thousand, forty-six".