427540072 has 32 divisors (see below), whose sum is σ = 850694400. Its totient is φ = 200744704.

The previous prime is 427540067. The next prime is 427540073. The reversal of 427540072 is 270045724.

It is not an unprimeable number, because it can be changed into a prime (427540073) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61863 + ... + 68425.

It is an arithmetic number, because the mean of its divisors is an integer number (26584200).

Almost surely, 2^427540072 is an apocalyptic number.

It is an amenable number.

427540072 is a deficient number, since it is larger than the sum of its proper divisors (423154328).

427540072 is a wasteful number, since it uses less digits than its factorization.

427540072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7065 (or 7061 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 31.

The square root of 427540072 is about 20677.0421482377. The cubic root of 427540072 is about 753.3421641658.

Adding to 427540072 its reverse (270045724), we get a palindrome (697585796).

The spelling of 427540072 in words is "four hundred twenty-seven million, five hundred forty thousand, seventy-two".