39742248 has 128 divisors (see below), whose sum is σ = 126443520. Its totient is φ = 10126080.

The previous prime is 39742207. The next prime is 39742253. The reversal of 39742248 is 84224793.

39742248 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 67411 + ... + 67997.

It is an arithmetic number, because the mean of its divisors is an integer number (987840).

Almost surely, 2^39742248 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 39742248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63221760).

39742248 is an abundant number, since it is smaller than the sum of its proper divisors (86701272).

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

39742248 is a wasteful number, since it uses less digits than its factorization.

39742248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 647 (or 643 counting only the distinct ones).

The product of its digits is 96768, while the sum is 39.

The square root of 39742248 is about 6304.1453028940. The cubic root of 39742248 is about 341.2590229604.

The spelling of 39742248 in words is "thirty-nine million, seven hundred forty-two thousand, two hundred forty-eight".