32540402 has 8 divisors (see below), whose sum is σ = 48877356. Its totient is φ = 16247952.

The previous prime is 32540381. The next prime is 32540413. The reversal of 32540402 is 20404523.

It can be written as a sum of positive squares in 2 ways, for example, as 31460881 + 1079521 = 5609^2 + 1039^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9233 + ... + 12260.

Almost surely, 2^32540402 is an apocalyptic number.

32540402 is a deficient number, since it is larger than the sum of its proper divisors (16336954).

32540402 is a wasteful number, since it uses less digits than its factorization.

32540402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22252.

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 32540402 is about 5704.4195147272. The cubic root of 32540402 is about 319.2573991266.

Adding to 32540402 its reverse (20404523), we get a palindrome (52944925).

The spelling of 32540402 in words is "thirty-two million, five hundred forty thousand, four hundred two".