42127340 has 24 divisors (see below), whose sum is σ = 88814880. Its totient is φ = 16784768.

The previous prime is 42127331. The next prime is 42127361. The reversal of 42127340 is 4372124.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1256 + ... + 9264.

It is an arithmetic number, because the mean of its divisors is an integer number (3700620).

Almost surely, 2^42127340 is an apocalyptic number.

It is an amenable number.

42127340 is an abundant number, since it is smaller than the sum of its proper divisors (46687540).

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

42127340 is a wasteful number, since it uses less digits than its factorization.

42127340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8281 (or 8279 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 42127340 is about 6490.5577572347. The cubic root of 42127340 is about 347.9536094413.

Adding to 42127340 its reverse (4372124), we get a palindrome (46499464).

The spelling of 42127340 in words is "forty-two million, one hundred twenty-seven thousand, three hundred forty".