71394912 has 48 divisors (see below), whose sum is σ = 208237680. Its totient is φ = 23798016.

The previous prime is 71394901. The next prime is 71394919. The reversal of 71394912 is 21949317.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71394919) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40453 + ... + 42180.

It is an arithmetic number, because the mean of its divisors is an integer number (4338285).

Almost surely, 2^71394912 is an apocalyptic number.

71394912 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

71394912 is an abundant number, since it is smaller than the sum of its proper divisors (136842768).

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

71394912 is a wasteful number, since it uses less digits than its factorization.

71394912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82652 (or 82638 counting only the distinct ones).

The product of its digits is 13608, while the sum is 36.

The square root of 71394912 is about 8449.5509939878. The cubic root of 71394912 is about 414.8480829737.

The spelling of 71394912 in words is "seventy-one million, three hundred ninety-four thousand, nine hundred twelve".