42938712 has 48 divisors (see below), whose sum is σ = 117780000. Its totient is φ = 14129856.

The previous prime is 42938681. The next prime is 42938737. The reversal of 42938712 is 21783924.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1914 + ... + 9462.

It is an arithmetic number, because the mean of its divisors is an integer number (2453750).

Almost surely, 2^42938712 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 42938712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58890000).

42938712 is an abundant number, since it is smaller than the sum of its proper divisors (74841288).

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

42938712 is a wasteful number, since it uses less digits than its factorization.

42938712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7640 (or 7633 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 42938712 is about 6552.7636917563. The cubic root of 42938712 is about 350.1732801836.

The spelling of 42938712 in words is "forty-two million, nine hundred thirty-eight thousand, seven hundred twelve".