39880512 has 210 divisors, whose sum is σ = 138395202. Its totient is φ = 11321856.

The previous prime is 39880501. The next prime is 39880517. The reversal of 39880512 is 21508893.

It can be written as a sum of positive squares in only one way, i.e., 30735936 + 9144576 = 5544^2 + 3024^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39880517) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 253938 + ... + 254094.

Almost surely, 2^39880512 is an apocalyptic number.

39880512 is a gapful number since it is divisible by the number (32) 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 39880512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69197601).

39880512 is an abundant number, since it is smaller than the sum of its proper divisors (98514690).

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

39880512 is a wasteful number, since it uses less digits than its factorization.

39880512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195 (or 169 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 39880512 is about 6315.1018994154. The cubic root of 39880512 is about 341.6543136786.

The spelling of 39880512 in words is "thirty-nine million, eight hundred eighty thousand, five hundred twelve".