26420990 has 16 divisors (see below), whose sum is σ = 49092480. Its totient is φ = 10227360.

The previous prime is 26420987. The next prime is 26420993. The reversal of 26420990 is 9902462.

It is an interprime number because it is at equal distance from previous prime (26420987) and next prime (26420993).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26420993) 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, 42305 + ... + 42924.

It is an arithmetic number, because the mean of its divisors is an integer number (3068280).

Almost surely, 2^26420990 is an apocalyptic number.

26420990 is a deficient number, since it is larger than the sum of its proper divisors (22671490).

26420990 is a wasteful number, since it uses less digits than its factorization.

26420990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85267.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 26420990 is about 5140.1352122293. The cubic root of 26420990 is about 297.8400038993.

The spelling of 26420990 in words is "twenty-six million, four hundred twenty thousand, nine hundred ninety".