20750434 has 8 divisors (see below), whose sum is σ = 31446828. Its totient is φ = 10268160.

The previous prime is 20750423. The next prime is 20750441. The reversal of 20750434 is 43405702.

It can be written as a sum of positive squares in 2 ways, for example, as 20115225 + 635209 = 4485^2 + 797^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×20750434² = 861161022376712, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20750399 and 20750408.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53287 + ... + 53674.

Almost surely, 2^20750434 is an apocalyptic number.

20750434 is a deficient number, since it is larger than the sum of its proper divisors (10696394).

20750434 is a wasteful number, since it uses less digits than its factorization.

20750434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107060.

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

The square root of 20750434 is about 4555.2644270119. The cubic root of 20750434 is about 274.7951488189.

The spelling of 20750434 in words is "twenty million, seven hundred fifty thousand, four hundred thirty-four".