39442037 has 4 divisors (see below), whose sum is σ = 40508076. Its totient is φ = 38376000.

The previous prime is 39442021. The next prime is 39442049. The reversal of 39442037 is 73024493.

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

It can be written as a sum of positive squares in 2 ways, for example, as 36312676 + 3129361 = 6026^2 + 1769^2 .

It is a cyclic number.

It is not a de Polignac number, because 39442037 - 2⁴ = 39442021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 39441994 and 39442012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39442087) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 532964 + ... + 533037.

It is an arithmetic number, because the mean of its divisors is an integer number (10127019).

Almost surely, 2^39442037 is an apocalyptic number.

39442037 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

It is an amenable number.

39442037 is a deficient number, since it is larger than the sum of its proper divisors (1066039).

39442037 is a wasteful number, since it uses less digits than its factorization.

39442037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1066038.

The product of its (nonzero) digits is 18144, while the sum is 32.

The square root of 39442037 is about 6280.2895633880. The cubic root of 39442037 is about 340.3975655065.

The spelling of 39442037 in words is "thirty-nine million, four hundred forty-two thousand, thirty-seven".