26164890 has 32 divisors (see below), whose sum is σ = 69773760. Its totient is φ = 6977232.

The previous prime is 26164889. The next prime is 26164903. The reversal of 26164890 is 9846162.

26164890 is a `hidden beast` number, since 2 + 6 + 1 + 648 + 9 + 0 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48184 + ... + 48723.

It is an arithmetic number, because the mean of its divisors is an integer number (2180430).

Almost surely, 2^26164890 is an apocalyptic number.

26164890 is an abundant number, since it is smaller than the sum of its proper divisors (43608870).

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

26164890 is a wasteful number, since it uses less digits than its factorization.

26164890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96923 (or 96917 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 26164890 is about 5115.1627540089. The cubic root of 26164890 is about 296.8745516521.

The spelling of 26164890 in words is "twenty-six million, one hundred sixty-four thousand, eight hundred ninety".