40990838 has 8 divisors (see below), whose sum is σ = 70270032. Its totient is φ = 17567496.

The previous prime is 40990823. The next prime is 40990843. The reversal of 40990838 is 83809904.

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

It is a junction number, because it is equal to n+sod(n) for n = 40990795 and 40990804.

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, 1463945 + ... + 1463972.

It is an arithmetic number, because the mean of its divisors is an integer number (8783754).

Almost surely, 2^40990838 is an apocalyptic number.

40990838 is a deficient number, since it is larger than the sum of its proper divisors (29279194).

40990838 is a wasteful number, since it uses less digits than its factorization.

40990838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2927926.

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 40990838 is about 6402.4087654570. The cubic root of 40990838 is about 344.7960371115.

The spelling of 40990838 in words is "forty million, nine hundred ninety thousand, eight hundred thirty-eight".