20348956 has 24 divisors (see below), whose sum is σ = 36804096. Its totient is φ = 9838080.

The previous prime is 20348953. The next prime is 20348957. The reversal of 20348956 is 65984302.

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 7 ways as a sum of consecutive naturals, for example, 20340 + ... + 21316.

It is an arithmetic number, because the mean of its divisors is an integer number (1533504).

Almost surely, 2^20348956 is an apocalyptic number.

It is an amenable number.

20348956 is a deficient number, since it is larger than the sum of its proper divisors (16455140).

20348956 is a wasteful number, since it uses less digits than its factorization.

20348956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1149 (or 1147 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 20348956 is about 4510.9817113351. The cubic root of 20348956 is about 273.0113552863.

The spelling of 20348956 in words is "twenty million, three hundred forty-eight thousand, nine hundred fifty-six".