20074349 has 2 divisors, whose sum is σ = 20074350. Its totient is φ = 20074348.

The previous prime is 20074321. The next prime is 20074357. The reversal of 20074349 is 94347002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18232900 + 1841449 = 4270^2 + 1357^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20074349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20074319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10037174 + 10037175.

It is an arithmetic number, because the mean of its divisors is an integer number (10037175).

Almost surely, 2^20074349 is an apocalyptic number.

It is an amenable number.

20074349 is a deficient number, since it is larger than the sum of its proper divisors (1).

20074349 is an equidigital number, since it uses as much as digits as its factorization.

20074349 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 20074349 is about 4480.4407149297. The cubic root of 20074349 is about 271.7777027803. Note that the first 4 decimals are identical.

The spelling of 20074349 in words is "twenty million, seventy-four thousand, three hundred forty-nine".