21342002 has 8 divisors (see below), whose sum is σ = 34923312. Its totient is φ = 9700900.

The previous prime is 21342001. The next prime is 21342023. The reversal of 21342002 is 20024312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (21342001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 485024 + ... + 485067.

It is an arithmetic number, because the mean of its divisors is an integer number (4365414).

Almost surely, 2^21342002 is an apocalyptic number.

21342002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21342002 is a deficient number, since it is larger than the sum of its proper divisors (13581310).

21342002 is a wasteful number, since it uses less digits than its factorization.

21342002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 970104.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 21342002 is about 4619.7404689008. The cubic root of 21342002 is about 277.3820703892.

Adding to 21342002 its reverse (20024312), we get a palindrome (41366314).

The spelling of 21342002 in words is "twenty-one million, three hundred forty-two thousand, two".