21295032 has 48 divisors (see below), whose sum is σ = 58525320. Its totient is φ = 6452160.

The previous prime is 21295013. The next prime is 21295037. The reversal of 21295032 is 23059212.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 21294993 and 21295011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21295037) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 763 + ... + 6570.

Almost surely, 2^21295032 is an apocalyptic number.

21295032 is a gapful number since it is divisible by the number (22) 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 21295032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29262660).

21295032 is an abundant number, since it is smaller than the sum of its proper divisors (37230288).

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

21295032 is a wasteful number, since it uses less digits than its factorization.

21295032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7364 (or 7349 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 21295032 is about 4614.6540498720. The cubic root of 21295032 is about 277.1784311764.

The spelling of 21295032 in words is "twenty-one million, two hundred ninety-five thousand, thirty-two".