32491368 has 320 divisors, whose sum is σ = 121968000. Its totient is φ = 7838208.

The previous prime is 32491367. The next prime is 32491373. The reversal of 32491368 is 86319423.

It is a super-2 number, since 2×32491368² = 2111377989022848, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (32491367) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1120378 + ... + 1120406.

It is an arithmetic number, because the mean of its divisors is an integer number (381150).

Almost surely, 2^32491368 is an apocalyptic number.

32491368 is a gapful number since it is divisible by the number (38) 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 32491368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60984000).

32491368 is an abundant number, since it is smaller than the sum of its proper divisors (89476632).

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

32491368 is a wasteful number, since it uses less digits than its factorization.

32491368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86 (or 73 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 32491368 is about 5700.1199987369. The cubic root of 32491368 is about 319.0969592222.

The spelling of 32491368 in words is "thirty-two million, four hundred ninety-one thousand, three hundred sixty-eight".