20380948 has 12 divisors (see below), whose sum is σ = 40761952. Its totient is φ = 8734680.

The previous prime is 20380937. The next prime is 20380951. The reversal of 20380948 is 84908302.

20380948 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 363918 + ... + 363973.

Almost surely, 2^20380948 is an apocalyptic number.

20380948 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

20380948 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20380948 is a wasteful number, since it uses less digits than its factorization.

20380948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 727902 (or 727900 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 20380948 is about 4514.5263317429. The cubic root of 20380948 is about 273.1543537128.

The spelling of 20380948 in words is "twenty million, three hundred eighty thousand, nine hundred forty-eight".