740781216 has 144 divisors (see below), whose sum is σ = 2457000000. Its totient is φ = 211623552.

The previous prime is 740781211. The next prime is 740781229. The reversal of 740781216 is 612187047.

It is a tau number, because it is divible by the number of its divisors (144).

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 (740781211) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 95035 + ... + 102533.

It is an arithmetic number, because the mean of its divisors is an integer number (17062500).

Almost surely, 2^740781216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 740781216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1228500000).

740781216 is an abundant number, since it is smaller than the sum of its proper divisors (1716218784).

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

740781216 is a wasteful number, since it uses less digits than its factorization.

740781216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7536 (or 7511 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 36.

The square root of 740781216 is about 27217.2962654265. The cubic root of 740781216 is about 904.8223519117.

The spelling of 740781216 in words is "seven hundred forty million, seven hundred eighty-one thousand, two hundred sixteen".