71442460 has 24 divisors (see below), whose sum is σ = 150682896. Its totient is φ = 28452480.

The previous prime is 71442431. The next prime is 71442461. The reversal of 71442460 is 6424417.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71442461) by changing a digit.

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, 3006 + ... + 12325.

It is an arithmetic number, because the mean of its divisors is an integer number (6278454).

Almost surely, 2^71442460 is an apocalyptic number.

It is an amenable number.

71442460 is an abundant number, since it is smaller than the sum of its proper divisors (79240436).

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

71442460 is a wasteful number, since it uses less digits than its factorization.

71442460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15573 (or 15571 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 71442460 is about 8452.3641663147. The cubic root of 71442460 is about 414.9401568522.

Adding to 71442460 its reverse (6424417), we get a palindrome (77866877).

It can be divided in two parts, 7144 and 2460, that added together give a square (9604 = 98²).

The spelling of 71442460 in words is "seventy-one million, four hundred forty-two thousand, four hundred sixty".