734161680 has 240 divisors, whose sum is σ = 2915527680. Its totient is φ = 161989632.

The previous prime is 734161619. The next prime is 734161693. The reversal of 734161680 is 86161437.

734161680 is a `hidden beast` number, since 7 + 34 + 1 + 616 + 8 + 0 = 666.

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 (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 143649 + ... + 148671.

It is an arithmetic number, because the mean of its divisors is an integer number (12148032).

Almost surely, 2^734161680 is an apocalyptic number.

734161680 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 734161680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1457763840).

734161680 is an abundant number, since it is smaller than the sum of its proper divisors (2181366000).

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

734161680 is a wasteful number, since it uses less digits than its factorization.

734161680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5078 (or 5069 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 734161680 is about 27095.4180628386. The cubic root of 734161680 is about 902.1191544368.

The spelling of 734161680 in words is "seven hundred thirty-four million, one hundred sixty-one thousand, six hundred eighty".