71774460 has 72 divisors (see below), whose sum is σ = 218640240. Its totient is φ = 19058688.

The previous prime is 71774453. The next prime is 71774497. The reversal of 71774460 is 6447717.

It is a super-3 number, since 3×71774460³ (a number of 25 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 50236 + ... + 51644.

It is an arithmetic number, because the mean of its divisors is an integer number (3036670).

Almost surely, 2^71774460 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71774460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109320120).

71774460 is an abundant number, since it is smaller than the sum of its proper divisors (146865780).

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

71774460 is a wasteful number, since it uses less digits than its factorization.

71774460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1707 (or 1702 counting only the distinct ones).

The product of its (nonzero) digits is 32928, while the sum is 36.

The square root of 71774460 is about 8471.9808781654. The cubic root of 71774460 is about 415.5819194046.

The spelling of 71774460 in words is "seventy-one million, seven hundred seventy-four thousand, four hundred sixty".