20348968 has 8 divisors (see below), whose sum is σ = 38154330. Its totient is φ = 10174480.

The previous prime is 20348963. The next prime is 20348987. The reversal of 20348968 is 86984302.

It can be written as a sum of positive squares in only one way, i.e., 20232004 + 116964 = 4498^2 + 342^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 20348968.

It is not an unprimeable number, because it can be changed into a prime (20348963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1271803 + ... + 1271818.

Almost surely, 2^20348968 is an apocalyptic number.

It is an amenable number.

20348968 is a deficient number, since it is larger than the sum of its proper divisors (17805362).

20348968 is a wasteful number, since it uses less digits than its factorization.

20348968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2543627 (or 2543623 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 20348968 is about 4510.9830414223. The cubic root of 20348968 is about 273.0114089522.

It can be divided in two parts, 20348 and 968, that added together give a square (21316 = 146²).

The spelling of 20348968 in words is "twenty million, three hundred forty-eight thousand, nine hundred sixty-eight".