20631034 has 8 divisors (see below), whose sum is σ = 30967668. Its totient is φ = 10308480.

The previous prime is 20631031. The next prime is 20631043. The reversal of 20631034 is 43013602.

It can be written as a sum of positive squares in 2 ways, for example, as 20277009 + 354025 = 4503^2 + 595^2 .

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

It is not an unprimeable number, because it can be changed into a prime (20631031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1684 + ... + 6640.

Almost surely, 2^20631034 is an apocalyptic number.

20631034 is a deficient number, since it is larger than the sum of its proper divisors (10336634).

20631034 is a wasteful number, since it uses less digits than its factorization.

20631034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7040.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 20631034 is about 4542.1398041011. The cubic root of 20631034 is about 274.2670687092.

Adding to 20631034 its reverse (43013602), we get a palindrome (63644636).

The spelling of 20631034 in words is "twenty million, six hundred thirty-one thousand, thirty-four".