20025746 has 16 divisors (see below), whose sum is σ = 32476248. Its totient is φ = 9206400.

The previous prime is 20025743. The next prime is 20025767. The reversal of 20025746 is 64752002.

It can be written as a sum of positive squares in 4 ways, for example, as 13579225 + 6446521 = 3685^2 + 2539^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (20025743) 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, 5936 + ... + 8676.

Almost surely, 2^20025746 is an apocalyptic number.

20025746 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

20025746 is a deficient number, since it is larger than the sum of its proper divisors (12450502).

20025746 is a wasteful number, since it uses less digits than its factorization.

20025746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3037.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 20025746 is about 4475.0135195327. The cubic root of 20025746 is about 271.5581873754.

Adding to 20025746 its reverse (64752002), we get a palindrome (84777748).

The spelling of 20025746 in words is "twenty million, twenty-five thousand, seven hundred forty-six".