40791000 has 64 divisors (see below), whose sum is σ = 127277280. Its totient is φ = 10876800.

The previous prime is 40790999. The next prime is 40791001. The reversal of 40791000 is 19704.

It is an interprime number because it is at equal distance from previous prime (40790999) and next prime (40791001).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40791001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3799 + ... + 9798.

Almost surely, 2^40791000 is an apocalyptic number.

40791000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40791000 is an abundant number, since it is smaller than the sum of its proper divisors (86486280).

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

40791000 is a wasteful number, since it uses less digits than its factorization.

40791000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13621 (or 13607 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 21.

The square root of 40791000 is about 6386.7832278855. The cubic root of 40791000 is about 344.2348090393.

The spelling of 40791000 in words is "forty million, seven hundred ninety-one thousand".