26401434 has 16 divisors (see below), whose sum is σ = 53141088. Its totient is φ = 8744112.

The previous prime is 26401423. The next prime is 26401477. The reversal of 26401434 is 43410462.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13072 + ... + 14955.

It is an arithmetic number, because the mean of its divisors is an integer number (3321318).

Almost surely, 2^26401434 is an apocalyptic number.

26401434 is an abundant number, since it is smaller than the sum of its proper divisors (26739654).

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

26401434 is a wasteful number, since it uses less digits than its factorization.

26401434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28189.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 26401434 is about 5138.2325755069. The cubic root of 26401434 is about 297.7665017739.

Adding to 26401434 its reverse (43410462), we get a palindrome (69811896).

Subtracting 26401434 from its reverse (43410462), we obtain a triangular number (17009028 = T₅₈₃₂).

The spelling of 26401434 in words is "twenty-six million, four hundred one thousand, four hundred thirty-four".