39387040 has 192 divisors, whose sum is σ = 121927680. Its totient is φ = 11658240.

The previous prime is 39387031. The next prime is 39387053. The reversal of 39387040 is 4078393.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 39386987 and 39387005.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 283291 + ... + 283429.

It is an arithmetic number, because the mean of its divisors is an integer number (635040).

Almost surely, 2^39387040 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 39387040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60963840).

39387040 is an abundant number, since it is smaller than the sum of its proper divisors (82540640).

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

39387040 is a wasteful number, since it uses less digits than its factorization.

39387040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195 (or 187 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 39387040 is about 6275.9094958420. The cubic root of 39387040 is about 340.2392779334.

The spelling of 39387040 in words is "thirty-nine million, three hundred eighty-seven thousand, forty".