32151340 has 48 divisors (see below), whose sum is σ = 75075840. Its totient is φ = 11485440.

The previous prime is 32151323. The next prime is 32151359. The reversal of 32151340 is 4315123.

It is a nialpdrome in base 9.

It is a zygodrome in base 9.

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, 6066 + ... + 10054.

It is an arithmetic number, because the mean of its divisors is an integer number (1564080).

Almost surely, 2^32151340 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 32151340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37537920).

32151340 is an abundant number, since it is smaller than the sum of its proper divisors (42924500).

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

32151340 is a wasteful number, since it uses less digits than its factorization.

32151340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4042 (or 4040 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 32151340 is about 5670.2151634660. The cubic root of 32151340 is about 317.9799177751.

Adding to 32151340 its reverse (4315123), we get a palindrome (36466463).

The spelling of 32151340 in words is "thirty-two million, one hundred fifty-one thousand, three hundred forty".