40140046 has 8 divisors (see below), whose sum is σ = 63379080. Its totient is φ = 19013688.

The previous prime is 40140019. The next prime is 40140047. The reversal of 40140046 is 64004104.

40140046 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 2×40140046² = 3222446585764232, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40140047) 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 3 ways as a sum of consecutive naturals, for example, 528121 + ... + 528196.

It is an arithmetic number, because the mean of its divisors is an integer number (7922385).

Almost surely, 2^40140046 is an apocalyptic number.

40140046 is a deficient number, since it is larger than the sum of its proper divisors (23239034).

40140046 is a wasteful number, since it uses less digits than its factorization.

40140046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1056338.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 40140046 is about 6335.6172548537. The cubic root of 40140046 is about 342.3938499256.

The spelling of 40140046 in words is "forty million, one hundred forty thousand, forty-six".