20142948 has 48 divisors (see below), whose sum is σ = 55174784. Its totient is φ = 5598720.

The previous prime is 20142929. The next prime is 20142959. The reversal of 20142948 is 84924102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133 + ... + 6348.

Almost surely, 2^20142948 is an apocalyptic number.

20142948 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 20142948, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27587392).

20142948 is an abundant number, since it is smaller than the sum of its proper divisors (35031836).

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

20142948 is a wasteful number, since it uses less digits than its factorization.

20142948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6532 (or 6530 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 20142948 is about 4488.0895712987. The cubic root of 20142948 is about 272.0869279541.

The spelling of 20142948 in words is "twenty million, one hundred forty-two thousand, nine hundred forty-eight".