26361890 has 16 divisors (see below), whose sum is σ = 47582208. Its totient is φ = 10515696.

The previous prime is 26361869. The next prime is 26361919. The reversal of 26361890 is 9816362.

It is a self number, because there is not a number n which added to its sum of digits gives 26361890.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 389 + ... + 7271.

It is an arithmetic number, because the mean of its divisors is an integer number (2973888).

Almost surely, 2^26361890 is an apocalyptic number.

26361890 is a deficient number, since it is larger than the sum of its proper divisors (21220318).

26361890 is a wasteful number, since it uses less digits than its factorization.

26361890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7273.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 26361890 is about 5134.3831177660. The cubic root of 26361890 is about 297.6177628552.

The spelling of 26361890 in words is "twenty-six million, three hundred sixty-one thousand, eight hundred ninety".