40496990 has 16 divisors (see below), whose sum is σ = 73083600. Its totient is φ = 16156800.

The previous prime is 40496987. The next prime is 40497001. The reversal of 40496990 is 9969404.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1040 + ... + 9059.

It is an arithmetic number, because the mean of its divisors is an integer number (4567725).

Almost surely, 2^40496990 is an apocalyptic number.

40496990 is a deficient number, since it is larger than the sum of its proper divisors (32586610).

40496990 is a wasteful number, since it uses less digits than its factorization.

40496990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10507.

The product of its (nonzero) digits is 69984, while the sum is 41.

The square root of 40496990 is about 6363.7245383502. The cubic root of 40496990 is about 343.4057649259.

The spelling of 40496990 in words is "forty million, four hundred ninety-six thousand, nine hundred ninety".