26630740 has 24 divisors (see below), whose sum is σ = 56022120. Its totient is φ = 10633728.

The previous prime is 26630707. The next prime is 26630759. The reversal of 26630740 is 4703662.

It can be written as a sum of positive squares in 4 ways, for example, as 13410244 + 13220496 = 3662^2 + 3636^2 .

It is a junction number, because it is equal to n+sod(n) for n = 26630699 and 26630708.

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, 20016 + ... + 21304.

It is an arithmetic number, because the mean of its divisors is an integer number (2334255).

Almost surely, 2^26630740 is an apocalyptic number.

26630740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26630740 is an abundant number, since it is smaller than the sum of its proper divisors (29391380).

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

26630740 is a wasteful number, since it uses less digits than its factorization.

26630740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2331 (or 2329 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 26630740 is about 5160.4980379804. The cubic root of 26630740 is about 298.6260878605.

The spelling of 26630740 in words is "twenty-six million, six hundred thirty thousand, seven hundred forty".