39527478 has 48 divisors (see below), whose sum is σ = 89945856. Its totient is φ = 12521520.

The previous prime is 39527473. The next prime is 39527489. The reversal of 39527478 is 87472593.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39527471) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 126943 + ... + 127253.

It is an arithmetic number, because the mean of its divisors is an integer number (1873872).

Almost surely, 2^39527478 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 39527478, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44972928).

39527478 is an abundant number, since it is smaller than the sum of its proper divisors (50418378).

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

39527478 is a wasteful number, since it uses less digits than its factorization.

39527478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 649 (or 646 counting only the distinct ones).

The product of its digits is 423360, while the sum is 45.

The square root of 39527478 is about 6287.0881972500. The cubic root of 39527478 is about 340.6431827457.

The spelling of 39527478 in words is "thirty-nine million, five hundred twenty-seven thousand, four hundred seventy-eight".