26949220 has 24 divisors (see below), whose sum is σ = 59572800. Its totient is φ = 10212192.

The previous prime is 26949217. The next prime is 26949287. The reversal of 26949220 is 2294962.

It is a happy number.

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, 35080 + ... + 35839.

It is an arithmetic number, because the mean of its divisors is an integer number (2482200).

Almost surely, 2^26949220 is an apocalyptic number.

26949220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26949220 is an abundant number, since it is smaller than the sum of its proper divisors (32623580).

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

26949220 is a wasteful number, since it uses less digits than its factorization.

26949220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70947 (or 70945 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 26949220 is about 5191.2638152958. The cubic root of 26949220 is about 299.8118078964.

The spelling of 26949220 in words is "twenty-six million, nine hundred forty-nine thousand, two hundred twenty".