20023948 has 54 divisors (see below), whose sum is σ = 43173396. Its totient is φ = 8101296.

The previous prime is 20023933. The next prime is 20023981. The reversal of 20023948 is 84932002.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 70615 + ... + 70897.

Almost surely, 2^20023948 is an apocalyptic number.

20023948 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20023948, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21586698).

20023948 is an abundant number, since it is smaller than the sum of its proper divisors (23149448).

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

20023948 is a wasteful number, since it uses less digits than its factorization.

20023948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339 (or 311 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 20023948 is about 4474.8126217754. The cubic root of 20023948 is about 271.5500599007.

The spelling of 20023948 in words is "twenty million, twenty-three thousand, nine hundred forty-eight".