39445734 has 16 divisors (see below), whose sum is σ = 79365888. Its totient is φ = 13069512.

The previous prime is 39445723. The next prime is 39445739. The reversal of 39445734 is 43754493.

It is a junction number, because it is equal to n+sod(n) for n = 39445692 and 39445701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39445739) 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, 18682 + ... + 20685.

It is an arithmetic number, because the mean of its divisors is an integer number (4960368).

Almost surely, 2^39445734 is an apocalyptic number.

39445734 is an abundant number, since it is smaller than the sum of its proper divisors (39920154).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

39445734 is a wasteful number, since it uses less digits than its factorization.

39445734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39539.

The product of its digits is 181440, while the sum is 39.

The square root of 39445734 is about 6280.5838900535. The cubic root of 39445734 is about 340.4082006104.

The spelling of 39445734 in words is "thirty-nine million, four hundred forty-five thousand, seven hundred thirty-four".