32440742 has 4 divisors (see below), whose sum is σ = 48661116. Its totient is φ = 16220370.

The previous prime is 32440739. The next prime is 32440747. The reversal of 32440742 is 24704423.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32440747) by changing a digit.

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 as a sum of consecutive naturals, namely, 8110184 + ... + 8110187.

It is an arithmetic number, because the mean of its divisors is an integer number (12165279).

Almost surely, 2^32440742 is an apocalyptic number.

32440742 is a deficient number, since it is larger than the sum of its proper divisors (16220374).

32440742 is a wasteful number, since it uses less digits than its factorization.

32440742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16220373.

The product of its (nonzero) digits is 5376, while the sum is 26.

The square root of 32440742 is about 5695.6774838469. The cubic root of 32440742 is about 318.9311408189.

The spelling of 32440742 in words is "thirty-two million, four hundred forty thousand, seven hundred forty-two".