20350634 has 32 divisors (see below), whose sum is σ = 33912000. Its totient is φ = 9120384.

The previous prime is 20350621. The next prime is 20350639. The reversal of 20350634 is 43605302.

It is not an unprimeable number, because it can be changed into a prime (20350639) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64862 + ... + 65174.

It is an arithmetic number, because the mean of its divisors is an integer number (1059750).

Almost surely, 2^20350634 is an apocalyptic number.

20350634 is a deficient number, since it is larger than the sum of its proper divisors (13561366).

20350634 is a wasteful number, since it uses less digits than its factorization.

20350634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422.

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 20350634 is about 4511.1676980578. The cubic root of 20350634 is about 273.0188593643.

Adding to 20350634 its reverse (43605302), we get a palindrome (63955936).

The spelling of 20350634 in words is "twenty million, three hundred fifty thousand, six hundred thirty-four".