40938990 has 16 divisors (see below), whose sum is σ = 98253648. Its totient is φ = 10917056.

The previous prime is 40938973. The next prime is 40939013. The reversal of 40938990 is 9983904.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 682287 + ... + 682346.

It is an arithmetic number, because the mean of its divisors is an integer number (6140853).

Almost surely, 2^40938990 is an apocalyptic number.

40938990 is an abundant number, since it is smaller than the sum of its proper divisors (57314658).

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

40938990 is a wasteful number, since it uses less digits than its factorization.

40938990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1364643.

The product of its (nonzero) digits is 69984, while the sum is 42.

The square root of 40938990 is about 6398.3583832105. The cubic root of 40938990 is about 344.6506019489.

The spelling of 40938990 in words is "forty million, nine hundred thirty-eight thousand, nine hundred ninety".