40049894 has 8 divisors (see below), whose sum is σ = 60104808. Its totient is φ = 20014960.

The previous prime is 40049887. The next prime is 40049897. The reversal of 40049894 is 49894004.

40049894 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 2×40049894² = 3207988018822472, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40049897) 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, 1949 + ... + 9159.

It is an arithmetic number, because the mean of its divisors is an integer number (7513101).

Almost surely, 2^40049894 is an apocalyptic number.

40049894 is a deficient number, since it is larger than the sum of its proper divisors (20054914).

40049894 is a wasteful number, since it uses less digits than its factorization.

40049894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9990.

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 40049894 is about 6328.4985581100. The cubic root of 40049894 is about 342.1373261534.

The spelling of 40049894 in words is "forty million, forty-nine thousand, eight hundred ninety-four".