39428746 has 16 divisors (see below), whose sum is σ = 71568576. Its totient is φ = 15903936.

The previous prime is 39428731. The next prime is 39428747. The reversal of 39428746 is 64782493.

It is a super-2 number, since 2×39428746² = 3109252022265032, which contains 22 as substring.

It is a plaindrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (39428747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82596 + ... + 83071.

It is an arithmetic number, because the mean of its divisors is an integer number (4473036).

Almost surely, 2^39428746 is an apocalyptic number.

39428746 is a deficient number, since it is larger than the sum of its proper divisors (32139830).

39428746 is a wasteful number, since it uses less digits than its factorization.

39428746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165693.

The product of its digits is 290304, while the sum is 43.

The square root of 39428746 is about 6279.2313223833. The cubic root of 39428746 is about 340.3593259981.

The spelling of 39428746 in words is "thirty-nine million, four hundred twenty-eight thousand, seven hundred forty-six".