39221042 has 16 divisors (see below), whose sum is σ = 67684992. Its totient is φ = 16696800.

The previous prime is 39221011. The next prime is 39221047. The reversal of 39221042 is 24012293.

It is a junction number, because it is equal to n+sod(n) for n = 39220999 and 39221017.

It is not an unprimeable number, because it can be changed into a prime (39221047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7163 + ... + 11390.

It is an arithmetic number, because the mean of its divisors is an integer number (4230312).

Almost surely, 2^39221042 is an apocalyptic number.

39221042 is a deficient number, since it is larger than the sum of its proper divisors (28463950).

39221042 is a wasteful number, since it uses less digits than its factorization.

39221042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18713.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 39221042 is about 6262.6705166406. The cubic root of 39221042 is about 339.7606215849.

The spelling of 39221042 in words is "thirty-nine million, two hundred twenty-one thousand, forty-two".