39970560 has 144 divisors (see below), whose sum is σ = 145990656. Its totient is φ = 9129984.

The previous prime is 39970549. The next prime is 39970631. The reversal of 39970560 is 6507993.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26137 + ... + 27623.

It is an arithmetic number, because the mean of its divisors is an integer number (1013824).

Almost surely, 2^39970560 is an apocalyptic number.

39970560 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 39970560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72995328).

39970560 is an abundant number, since it is smaller than the sum of its proper divisors (106020096).

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

39970560 is a wasteful number, since it uses less digits than its factorization.

39970560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1518 (or 1504 counting only the distinct ones).

The product of its (nonzero) digits is 51030, while the sum is 39.

The square root of 39970560 is about 6322.2274555729. The cubic root of 39970560 is about 341.9112659230.

The spelling of 39970560 in words is "thirty-nine million, nine hundred seventy thousand, five hundred sixty".