71476240 has 40 divisors (see below), whose sum is σ = 181291968. Its totient is φ = 25991040.

The previous prime is 71476231. The next prime is 71476253. The reversal of 71476240 is 4267417.

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

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39732 + ... + 41491.

Almost surely, 2^71476240 is an apocalyptic number.

It is an amenable number.

71476240 is an abundant number, since it is smaller than the sum of its proper divisors (109815728).

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

71476240 is a wasteful number, since it uses less digits than its factorization.

71476240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81247 (or 81241 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 31.

The square root of 71476240 is about 8454.3621876520. The cubic root of 71476240 is about 415.0055449978.

The spelling of 71476240 in words is "seventy-one million, four hundred seventy-six thousand, two hundred forty".