20274043 has 4 divisors (see below), whose sum is σ = 20391408. Its totient is φ = 20156680.

The previous prime is 20274041. The next prime is 20274073. The reversal of 20274043 is 34047202.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20274043 - 2¹ = 20274041 is a prime.

It is a super-2 number, since 2×20274043² = 822073639131698, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20274041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58423 + ... + 58768.

It is an arithmetic number, because the mean of its divisors is an integer number (5097852).

Almost surely, 2^20274043 is an apocalyptic number.

20274043 is a deficient number, since it is larger than the sum of its proper divisors (117365).

20274043 is a wasteful number, since it uses less digits than its factorization.

20274043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117364.

The product of its (nonzero) digits is 1344, while the sum is 22.

The square root of 20274043 is about 4502.6706519576. The cubic root of 20274043 is about 272.6759204088.

The spelling of 20274043 in words is "twenty million, two hundred seventy-four thousand, forty-three".