20091294 has 16 divisors (see below), whose sum is σ = 44647440. Its totient is φ = 6697080.

The previous prime is 20091289. The next prime is 20091299. The reversal of 20091294 is 49219002.

It is an interprime number because it is at equal distance from previous prime (20091289) and next prime (20091299).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20091299) 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, 185977 + ... + 186084.

It is an arithmetic number, because the mean of its divisors is an integer number (2790465).

Almost surely, 2^20091294 is an apocalyptic number.

20091294 is an abundant number, since it is smaller than the sum of its proper divisors (24556146).

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

20091294 is a wasteful number, since it uses less digits than its factorization.

20091294 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372072 (or 372066 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 20091294 is about 4482.3313130557. The cubic root of 20091294 is about 271.8541515523.

The spelling of 20091294 in words is "twenty million, ninety-one thousand, two hundred ninety-four".