21514352 has 10 divisors (see below), whose sum is σ = 41684088. Its totient is φ = 10757168.

The previous prime is 21514301. The next prime is 21514369. The reversal of 21514352 is 25341512.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 672308 + ... + 672339.

Almost surely, 2^21514352 is an apocalyptic number.

It is an amenable number.

21514352 is a deficient number, since it is larger than the sum of its proper divisors (20169736).

21514352 is a wasteful number, since it uses less digits than its factorization.

21514352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1344655 (or 1344649 counting only the distinct ones).

The product of its digits is 1200, while the sum is 23.

The square root of 21514352 is about 4638.3566055231. The cubic root of 21514352 is about 278.1267472347.

Adding to 21514352 its reverse (25341512), we get a palindrome (46855864).

The spelling of 21514352 in words is "twenty-one million, five hundred fourteen thousand, three hundred fifty-two".