20348958 has 32 divisors (see below), whose sum is σ = 48015360. Its totient is φ = 5626080.

The previous prime is 20348957. The next prime is 20348963. The reversal of 20348958 is 85984302.

It is a happy number.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20348953) 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, 6513 + ... + 9116.

It is an arithmetic number, because the mean of its divisors is an integer number (1500480).

Almost surely, 2^20348958 is an apocalyptic number.

20348958 is an abundant number, since it is smaller than the sum of its proper divisors (27666402).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20348958 is a wasteful number, since it uses less digits than its factorization.

20348958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15672.

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 20348958 is about 4510.9819330164. The cubic root of 20348958 is about 273.0113642306.

The spelling of 20348958 in words is "twenty million, three hundred forty-eight thousand, nine hundred fifty-eight".