42927040 has 112 divisors (see below), whose sum is σ = 116750592. Its totient is φ = 14893056.

The previous prime is 42927037. The next prime is 42927109. The reversal of 42927040 is 4072924.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70417 + ... + 71023.

It is an arithmetic number, because the mean of its divisors is an integer number (1042416).

Almost surely, 2^42927040 is an apocalyptic number.

42927040 is a gapful number since it is divisible by the number (40) 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 42927040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58375296).

42927040 is an abundant number, since it is smaller than the sum of its proper divisors (73823552).

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

42927040 is a wasteful number, since it uses less digits than its factorization.

42927040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 654 (or 644 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 42927040 is about 6551.8730146425. The cubic root of 42927040 is about 350.1415481891.

Adding to 42927040 its reverse (4072924), we get a palindrome (46999964).

The spelling of 42927040 in words is "forty-two million, nine hundred twenty-seven thousand, forty".