20430754 has 4 divisors (see below), whose sum is σ = 30646134. Its totient is φ = 10215376.

The previous prime is 20430749. The next prime is 20430763. The reversal of 20430754 is 45703402.

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., 10413529 + 10017225 = 3227^2 + 3165^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5107687 + ... + 5107690.

Almost surely, 2^20430754 is an apocalyptic number.

20430754 is a deficient number, since it is larger than the sum of its proper divisors (10215380).

20430754 is a wasteful number, since it uses less digits than its factorization.

20430754 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10215379.

The product of its (nonzero) digits is 3360, while the sum is 25.

The square root of 20430754 is about 4520.0391591224. The cubic root of 20430754 is about 273.3766799521.

The spelling of 20430754 in words is "twenty million, four hundred thirty thousand, seven hundred fifty-four".