21448000942 has 4 divisors (see below), whose sum is σ = 32172001416. Its totient is φ = 10724000470.

The previous prime is 21448000933. The next prime is 21448000943. The reversal of 21448000942 is 24900084412.

It is a semiprime because it is the product of two primes.

It is a pancake number, because a pancake can be divided into 21448000942 parts by 207113 straight cuts.

It is a junction number, because it is equal to n+sod(n) for n = 21448000898 and 21448000907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21448000943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5362000234 + ... + 5362000237.

It is an arithmetic number, because the mean of its divisors is an integer number (8043000354).

Almost surely, 2^21448000942 is an apocalyptic number.

21448000942 is a deficient number, since it is larger than the sum of its proper divisors (10724000474).

21448000942 is a wasteful number, since it uses less digits than its factorization.

21448000942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10724000473.

The product of its (nonzero) digits is 18432, while the sum is 34.

The spelling of 21448000942 in words is "twenty-one billion, four hundred forty-eight million, nine hundred forty-two", and thus it is an aban number.