40279146 has 8 divisors (see below), whose sum is σ = 80558304. Its totient is φ = 13426380.

The previous prime is 40279139. The next prime is 40279157. The reversal of 40279146 is 64197204.

It is a happy number.

40279146 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.

40279146 is an admirable number.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

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, 3356590 + ... + 3356601.

It is an arithmetic number, because the mean of its divisors is an integer number (10069788).

Almost surely, 2^40279146 is an apocalyptic number.

40279146 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

40279146 is a wasteful number, since it uses less digits than its factorization.

40279146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6713196.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 40279146 is about 6346.5853811321. The cubic root of 40279146 is about 342.7889007533.

The spelling of 40279146 in words is "forty million, two hundred seventy-nine thousand, one hundred forty-six".