20200426 has 4 divisors (see below), whose sum is σ = 30300642. Its totient is φ = 10100212.

The previous prime is 20200393. The next prime is 20200429. The reversal of 20200426 is 62400202.

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

It can be written as a sum of positive squares in only one way, i.e., 10246401 + 9954025 = 3201^2 + 3155^2 .

It is not an unprimeable number, because it can be changed into a prime (20200429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5050105 + ... + 5050108.

Almost surely, 2^20200426 is an apocalyptic number.

20200426 is a deficient number, since it is larger than the sum of its proper divisors (10100216).

20200426 is a wasteful number, since it uses less digits than its factorization.

20200426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10100215.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 20200426 is about 4494.4884024770. The cubic root of 20200426 is about 272.3454826378.

Adding to 20200426 its reverse (62400202), we get a palindrome (82600628).

The spelling of 20200426 in words is "twenty million, two hundred thousand, four hundred twenty-six".