32438340 has 192 divisors, whose sum is σ = 113541120. Its totient is φ = 7620480.

The previous prime is 32438333. The next prime is 32438387. The reversal of 32438340 is 4383423.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 255357 + ... + 255483.

It is an arithmetic number, because the mean of its divisors is an integer number (591360).

Almost surely, 2^32438340 is an apocalyptic number.

32438340 is a gapful number since it is divisible by the number (30) 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 32438340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56770560).

32438340 is an abundant number, since it is smaller than the sum of its proper divisors (81102780).

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

32438340 is a wasteful number, since it uses less digits than its factorization.

32438340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199 (or 191 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

The square root of 32438340 is about 5695.4666182851. The cubic root of 32438340 is about 318.9232691175.

It can be divided in two parts, 324383 and 40, that added together give a palindrome (324423).

The spelling of 32438340 in words is "thirty-two million, four hundred thirty-eight thousand, three hundred forty".