71415264 has 48 divisors (see below), whose sum is σ = 188068608. Its totient is φ = 23728512.

The previous prime is 71415263. The next prime is 71415269. The reversal of 71415264 is 46251417.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71415263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34219 + ... + 36245.

It is an arithmetic number, because the mean of its divisors is an integer number (3918096).

Almost surely, 2^71415264 is an apocalyptic number.

It is an amenable number.

71415264 is an abundant number, since it is smaller than the sum of its proper divisors (116653344).

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

71415264 is a wasteful number, since it uses less digits than its factorization.

71415264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2407 (or 2399 counting only the distinct ones).

The product of its digits is 6720, while the sum is 30.

The square root of 71415264 is about 8450.7552325221. The cubic root of 71415264 is about 414.8874984157.

The spelling of 71415264 in words is "seventy-one million, four hundred fifteen thousand, two hundred sixty-four".