26420913 has 12 divisors (see below), whose sum is σ = 38233780. Its totient is φ = 17581536.

The previous prime is 26420881. The next prime is 26420917. The reversal of 26420913 is 31902462.

26420913 is a `hidden beast` number, since 2 + 642 + 0 + 9 + 13 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 685584 + 25735329 = 828^2 + 5073^2 .

It is not a de Polignac number, because 26420913 - 2⁵ = 26420881 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (26420917) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3123 + ... + 7911.

Almost surely, 2^26420913 is an apocalyptic number.

It is an amenable number.

26420913 is a deficient number, since it is larger than the sum of its proper divisors (11812867).

26420913 is a wasteful number, since it uses less digits than its factorization.

26420913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5408 (or 5405 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 26420913 is about 5140.1277221485. The cubic root of 26420913 is about 297.8397145624.

The spelling of 26420913 in words is "twenty-six million, four hundred twenty thousand, nine hundred thirteen".