32421396 has 48 divisors (see below), whose sum is σ = 87274880. Its totient is φ = 9175680.

The previous prime is 32421383. The next prime is 32421407. The reversal of 32421396 is 69312423.

It is a super-2 number, since 2×32421396² = 2102293837177632, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7386 + ... + 10926.

Almost surely, 2^32421396 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 32421396, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43637440).

32421396 is an abundant number, since it is smaller than the sum of its proper divisors (54853484).

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

32421396 is a wasteful number, since it uses less digits than its factorization.

32421396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3664 (or 3662 counting only the distinct ones).

The product of its digits is 7776, while the sum is 30.

The square root of 32421396 is about 5693.9789251454. The cubic root of 32421396 is about 318.8677301366.

The spelling of 32421396 in words is "thirty-two million, four hundred twenty-one thousand, three hundred ninety-six".