26077220 has 24 divisors (see below), whose sum is σ = 58975224. Its totient is φ = 9628416.

The previous prime is 26077211. The next prime is 26077223. The reversal of 26077220 is 2277062.

It can be written as a sum of positive squares in 4 ways, for example, as 4990756 + 21086464 = 2234^2 + 4592^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a self number, because there is not a number n which added to its sum of digits gives 26077220.

It is not an unprimeable number, because it can be changed into a prime (26077223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49889 + ... + 50408.

It is an arithmetic number, because the mean of its divisors is an integer number (2457301).

Almost surely, 2^26077220 is an apocalyptic number.

26077220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26077220 is an abundant number, since it is smaller than the sum of its proper divisors (32898004).

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

26077220 is a wasteful number, since it uses less digits than its factorization.

26077220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100319 (or 100317 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 26.

The square root of 26077220 is about 5106.5859436614. The cubic root of 26077220 is about 296.5426040754.

The spelling of 26077220 in words is "twenty-six million, seventy-seven thousand, two hundred twenty".