71622460 has 192 divisors, whose sum is σ = 203212800. Its totient is φ = 20579328.

The previous prime is 71622413. The next prime is 71622461. The reversal of 71622460 is 6422617.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71622461) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1213911 + ... + 1213969.

It is an arithmetic number, because the mean of its divisors is an integer number (1058400).

Almost surely, 2^71622460 is an apocalyptic number.

71622460 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71622460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101606400).

71622460 is an abundant number, since it is smaller than the sum of its proper divisors (131590340).

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

71622460 is a wasteful number, since it uses less digits than its factorization.

71622460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140 (or 138 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 71622460 is about 8463.0053763424. The cubic root of 71622460 is about 415.2883465662.

The spelling of 71622460 in words is "seventy-one million, six hundred twenty-two thousand, four hundred sixty".