20364074 has 4 divisors (see below), whose sum is σ = 30546114. Its totient is φ = 10182036.

The previous prime is 20364073. The next prime is 20364077. The reversal of 20364074 is 47046302.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 47046302 = 2 ⋅23523151.

It can be written as a sum of positive squares in only one way, i.e., 18983449 + 1380625 = 4357^2 + 1175^2 .

It is not an unprimeable number, because it can be changed into a prime (20364073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5091017 + ... + 5091020.

Almost surely, 2^20364074 is an apocalyptic number.

20364074 is a deficient number, since it is larger than the sum of its proper divisors (10182040).

20364074 is a wasteful number, since it uses less digits than its factorization.

20364074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10182039.

The product of its (nonzero) digits is 4032, while the sum is 26.

The square root of 20364074 is about 4512.6570886785. The cubic root of 20364074 is about 273.0789486632.

The spelling of 20364074 in words is "twenty million, three hundred sixty-four thousand, seventy-four".