39081472 has 40 divisors (see below), whose sum is σ = 80235936. Its totient is φ = 19003392.

The previous prime is 39081467. The next prime is 39081479. The reversal of 39081472 is 27418093.

It is a super-2 number, since 2×39081472² = 3054722907373568, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39081479) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17913 + ... + 19975.

Almost surely, 2^39081472 is an apocalyptic number.

39081472 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 39081472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40117968).

39081472 is an abundant number, since it is smaller than the sum of its proper divisors (41154464).

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

39081472 is an equidigital number, since it uses as much as digits as its factorization.

39081472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2118 (or 2102 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 39081472 is about 6251.5175757571. The cubic root of 39081472 is about 339.3571243101.

The spelling of 39081472 in words is "thirty-nine million, eighty-one thousand, four hundred seventy-two".