71462040 has 128 divisors (see below), whose sum is σ = 243129600. Its totient is φ = 16657920.

The previous prime is 71462029. The next prime is 71462047. The reversal of 71462040 is 4026417.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 71462040.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71462047) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28435 + ... + 30845.

It is an arithmetic number, because the mean of its divisors is an integer number (1899450).

Almost surely, 2^71462040 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 71462040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121564800).

71462040 is an abundant number, since it is smaller than the sum of its proper divisors (171667560).

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

71462040 is a wasteful number, since it uses less digits than its factorization.

71462040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2457 (or 2453 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 71462040 is about 8453.5223427871. The cubic root of 71462040 is about 414.9780604843.

Adding to 71462040 its reverse (4026417), we get a palindrome (75488457).

The spelling of 71462040 in words is "seventy-one million, four hundred sixty-two thousand, forty".