26321139 has 64 divisors (see below), whose sum is σ = 45158400. Its totient is φ = 15033600.

The previous prime is 26321129. The next prime is 26321143. The reversal of 26321139 is 93112362.

It is not a de Polignac number, because 26321139 - 2⁵ = 26321107 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26321129) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 446092 + ... + 446150.

It is an arithmetic number, because the mean of its divisors is an integer number (705600).

Almost surely, 2^26321139 is an apocalyptic number.

26321139 is a deficient number, since it is larger than the sum of its proper divisors (18837261).

26321139 is a wasteful number, since it uses less digits than its factorization.

26321139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153 (or 147 counting only the distinct ones).

The product of its digits is 1944, while the sum is 27.

The square root of 26321139 is about 5130.4131412587. The cubic root of 26321139 is about 297.4643282795.

The spelling of 26321139 in words is "twenty-six million, three hundred twenty-one thousand, one hundred thirty-nine".