40790000 has 50 divisors (see below), whose sum is σ = 98780880. Its totient is φ = 16312000.

The previous prime is 40789999. The next prime is 40790003. The reversal of 40790000 is 9704.

It is a tau number, because it is divible by the number of its divisors (50).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40790003) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 7961 + ... + 12039.

Almost surely, 2^40790000 is an apocalyptic number.

40790000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40790000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49390440).

40790000 is an abundant number, since it is smaller than the sum of its proper divisors (57990880).

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

40790000 is an equidigital number, since it uses as much as digits as its factorization.

40790000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4107 (or 4086 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 20.

The square root of 40790000 is about 6386.7049407343. The cubic root of 40790000 is about 344.2319960200.

Adding to 40790000 its reverse (9704), we get a palindrome (40799704).

The spelling of 40790000 in words is "forty million, seven hundred ninety thousand".