26401404 has 24 divisors (see below), whose sum is σ = 62915328. Its totient is φ = 8613040.

The previous prime is 26401381. The next prime is 26401409. The reversal of 26401404 is 40410462.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26401409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22842 + ... + 23969.

It is an arithmetic number, because the mean of its divisors is an integer number (2621472).

Almost surely, 2^26401404 is an apocalyptic number.

It is an amenable number.

26401404 is an abundant number, since it is smaller than the sum of its proper divisors (36513924).

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

26401404 is a wasteful number, since it uses less digits than its factorization.

26401404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46865 (or 46863 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 26401404 is about 5138.2296562143. The cubic root of 26401404 is about 297.7663889896.

Adding to 26401404 its reverse (40410462), we get a palindrome (66811866).

The spelling of 26401404 in words is "twenty-six million, four hundred one thousand, four hundred four".