71394960 has 240 divisors, whose sum is σ = 277857216. Its totient is φ = 15031296.

The previous prime is 71394943. The next prime is 71394971. The reversal of 71394960 is 6949317.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 152647 + ... + 153113.

Almost surely, 2^71394960 is an apocalyptic number.

71394960 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 71394960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138928608).

71394960 is an abundant number, since it is smaller than the sum of its proper divisors (206462256).

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

71394960 is a wasteful number, since it uses less digits than its factorization.

71394960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510 (or 497 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 39.

The square root of 71394960 is about 8449.5538343749. The cubic root of 71394960 is about 414.8481759434.

The spelling of 71394960 in words is "seventy-one million, three hundred ninety-four thousand, nine hundred sixty".