71430912 has 216 divisors, whose sum is σ = 243186944. Its totient is φ = 19740672.

The previous prime is 71430883. The next prime is 71430943. The reversal of 71430912 is 21903417.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 693453 + ... + 693555.

Almost surely, 2^71430912 is an apocalyptic number.

71430912 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 71430912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121593472).

71430912 is an abundant number, since it is smaller than the sum of its proper divisors (171756032).

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

71430912 is a wasteful number, since it uses less digits than its factorization.

71430912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175 (or 158 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 71430912 is about 8451.6810162239. The cubic root of 71430912 is about 414.9177985929.

It can be divided in two parts, 714 and 30912, that added together give a triangular number (31626 = T₂₅₁).

The spelling of 71430912 in words is "seventy-one million, four hundred thirty thousand, nine hundred twelve".