427140140 has 48 divisors (see below), whose sum is σ = 1079097600. Its totient is φ = 138739392.

The previous prime is 427140139. The next prime is 427140223. The reversal of 427140140 is 41041724.

It is a happy 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, 77630 + ... + 82949.

It is an arithmetic number, because the mean of its divisors is an integer number (22481200).

Almost surely, 2^427140140 is an apocalyptic number.

It is an amenable number.

427140140 is an abundant number, since it is smaller than the sum of its proper divisors (651957460).

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

427140140 is a wasteful number, since it uses less digits than its factorization.

427140140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160614 (or 160612 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 23.

The square root of 427140140 is about 20667.3689665618. The cubic root of 427140140 is about 753.1071923270.

Adding to 427140140 its reverse (41041724), we get a palindrome (468181864).

The spelling of 427140140 in words is "four hundred twenty-seven million, one hundred forty thousand, one hundred forty".