39428612 has 6 divisors (see below), whose sum is σ = 69000078. Its totient is φ = 19714304.

The previous prime is 39428581. The next prime is 39428633. The reversal of 39428612 is 21682493.

It can be written as a sum of positive squares in only one way, i.e., 39363076 + 65536 = 6274^2 + 256^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4928573 + ... + 4928580.

It is an arithmetic number, because the mean of its divisors is an integer number (11500013).

Almost surely, 2^39428612 is an apocalyptic number.

It is an amenable number.

39428612 is a deficient number, since it is larger than the sum of its proper divisors (29571466).

39428612 is a wasteful number, since it uses less digits than its factorization.

39428612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9857157 (or 9857155 counting only the distinct ones).

The product of its digits is 20736, while the sum is 35.

The square root of 39428612 is about 6279.2206522784. The cubic root of 39428612 is about 340.3589404232.

The spelling of 39428612 in words is "thirty-nine million, four hundred twenty-eight thousand, six hundred twelve".