26138430 has 64 divisors (see below), whose sum is σ = 70329600. Its totient is φ = 6907680.

The previous prime is 26138429. The next prime is 26138447. The reversal of 26138430 is 3483162.

It is a happy number.

26138430 is a `hidden beast` number, since 2 + 613 + 8 + 43 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 26138394 and 26138403.

It is a congruent 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, 35001 + ... + 35739.

It is an arithmetic number, because the mean of its divisors is an integer number (1098900).

Almost surely, 2^26138430 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26138430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35164800).

26138430 is an abundant number, since it is smaller than the sum of its proper divisors (44191170).

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

26138430 is a wasteful number, since it uses less digits than its factorization.

26138430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 886 (or 880 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 26138430 is about 5112.5756718116. The cubic root of 26138430 is about 296.7744435799.

The spelling of 26138430 in words is "twenty-six million, one hundred thirty-eight thousand, four hundred thirty".