71427120 has 40 divisors (see below), whose sum is σ = 221424816. Its totient is φ = 19047168.

The previous prime is 71427119. The next prime is 71427133. The reversal of 71427120 is 2172417.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 148567 + ... + 149046.

Almost surely, 2^71427120 is an apocalyptic number.

It is an amenable number.

71427120 is an abundant number, since it is smaller than the sum of its proper divisors (149997696).

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

71427120 is a wasteful number, since it uses less digits than its factorization.

71427120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297629 (or 297623 counting only the distinct ones).

The product of its (nonzero) digits is 784, while the sum is 24.

The square root of 71427120 is about 8451.4566791767. The cubic root of 71427120 is about 414.9104563182.

Adding to 71427120 its reverse (2172417), we get a palindrome (73599537).

The spelling of 71427120 in words is "seventy-one million, four hundred twenty-seven thousand, one hundred twenty".