26246421 has 24 divisors (see below), whose sum is σ = 39480480. Its totient is φ = 16781856.

The previous prime is 26246401. The next prime is 26246447. The reversal of 26246421 is 12464262.

It is not a de Polignac number, because 26246421 - 2¹¹ = 26244373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26246401) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 59026 + ... + 59468.

It is an arithmetic number, because the mean of its divisors is an integer number (1645020).

Almost surely, 2^26246421 is an apocalyptic number.

It is an amenable number.

26246421 is a deficient number, since it is larger than the sum of its proper divisors (13234059).

26246421 is a wasteful number, since it uses less digits than its factorization.

26246421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 705 (or 702 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

The square root of 26246421 is about 5123.1260964376. The cubic root of 26246421 is about 297.1825901692.

It can be divided in two parts, 2624 and 6421, that added together give a triangular number (9045 = T₁₃₄).

The spelling of 26246421 in words is "twenty-six million, two hundred forty-six thousand, four hundred twenty-one".