21462150 has 48 divisors (see below), whose sum is σ = 53568000. Its totient is φ = 5686560.

The previous prime is 21462149. The next prime is 21462157. The reversal of 21462150 is 5126412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21462157) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 29491 + ... + 30209.

It is an arithmetic number, because the mean of its divisors is an integer number (1116000).

Almost surely, 2^21462150 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21462150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26784000).

21462150 is an abundant number, since it is smaller than the sum of its proper divisors (32105850).

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

21462150 is a wasteful number, since it uses less digits than its factorization.

21462150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 933 (or 928 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 21462150 is about 4632.7259793776. The cubic root of 21462150 is about 277.9016179660.

Adding to 21462150 its reverse (5126412), we get a palindrome (26588562).

It can be divided in two parts, 21462 and 150, that added together give a palindrome (21612).

The spelling of 21462150 in words is "twenty-one million, four hundred sixty-two thousand, one hundred fifty".