71850744 has 96 divisors (see below), whose sum is σ = 228465120. Its totient is φ = 19968768.

The previous prime is 71850743. The next prime is 71850763. The reversal of 71850744 is 44705817.

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

It is a junction number, because it is equal to n+sod(n) for n = 71850699 and 71850708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71850743) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16722 + ... + 20574.

It is an arithmetic number, because the mean of its divisors is an integer number (2379845).

Almost surely, 2^71850744 is an apocalyptic number.

71850744 is a gapful number since it is divisible by the number (74) 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 71850744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114232560).

71850744 is an abundant number, since it is smaller than the sum of its proper divisors (156614376).

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

71850744 is a wasteful number, since it uses less digits than its factorization.

71850744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3909 (or 3902 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 36.

The square root of 71850744 is about 8476.4818173580. The cubic root of 71850744 is about 415.7290981569.

The spelling of 71850744 in words is "seventy-one million, eight hundred fifty thousand, seven hundred forty-four".