20850430 has 16 divisors (see below), whose sum is σ = 37984464. Its totient is φ = 8239360.

The previous prime is 20850409. The next prime is 20850437. The reversal of 20850430 is 3405802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20850437) 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, 11731 + ... + 13390.

It is an arithmetic number, because the mean of its divisors is an integer number (2374029).

Almost surely, 2^20850430 is an apocalyptic number.

20850430 is a deficient number, since it is larger than the sum of its proper divisors (17134034).

20850430 is a wasteful number, since it uses less digits than its factorization.

20850430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25211.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 20850430 is about 4566.2271077992. The cubic root of 20850430 is about 275.2358527603.

The spelling of 20850430 in words is "twenty million, eight hundred fifty thousand, four hundred thirty".