40790490 has 64 divisors (see below), whose sum is σ = 108041472. Its totient is φ = 9792000.

The previous prime is 40790479. The next prime is 40790507. The reversal of 40790490 is 9409704.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14715 + ... + 17265.

It is an arithmetic number, because the mean of its divisors is an integer number (1688148).

Almost surely, 2^40790490 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40790490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54020736).

40790490 is an abundant number, since it is smaller than the sum of its proper divisors (67250982).

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

40790490 is a wasteful number, since it uses less digits than its factorization.

40790490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2615.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 40790490 is about 6386.7433015583. The cubic root of 40790490 is about 344.2333744052.

The spelling of 40790490 in words is "forty million, seven hundred ninety thousand, four hundred ninety".