71370432 has 168 divisors, whose sum is σ = 241759232. Its totient is φ = 19699200.

The previous prime is 71370379. The next prime is 71370443. The reversal of 71370432 is 23407317.

71370432 is an esthetic number in base 5, because in such base its adjacent digits differ by 1.

It is a tau number, because it is divible by the number of its divisors (168).

It is a junction number, because it is equal to n+sod(n) for n = 71370396 and 71370405.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 124707 + ... + 125277.

Almost surely, 2^71370432 is an apocalyptic number.

71370432 is a gapful number since it is divisible by the number (72) 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 71370432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120879616).

71370432 is an abundant number, since it is smaller than the sum of its proper divisors (170388800).

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

71370432 is a wasteful number, since it uses less digits than its factorization.

71370432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 627 (or 614 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 27.

The square root of 71370432 is about 8448.1022721082. The cubic root of 71370432 is about 414.8006629652.

Adding to 71370432 its reverse (23407317), we get a palindrome (94777749).

The spelling of 71370432 in words is "seventy-one million, three hundred seventy thousand, four hundred thirty-two".