740181672 has 128 divisors (see below), whose sum is σ = 2101680000. Its totient is φ = 241325568.

The previous prime is 740181671. The next prime is 740181697. The reversal of 740181672 is 276181047.

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

It is not an unprimeable number, because it can be changed into a prime (740181671) 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 31 ways as a sum of consecutive naturals, for example, 2671998 + ... + 2672274.

It is an arithmetic number, because the mean of its divisors is an integer number (16419375).

Almost surely, 2^740181672 is an apocalyptic number.

740181672 is a gapful number since it is divisible by the number (72) 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 740181672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1050840000).

740181672 is an abundant number, since it is smaller than the sum of its proper divisors (1361498328).

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

740181672 is a wasteful number, since it uses less digits than its factorization.

740181672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520 (or 510 counting only the distinct ones).

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

The square root of 740181672 is about 27206.2800103211. The cubic root of 740181672 is about 904.5781830006.

The spelling of 740181672 in words is "seven hundred forty million, one hundred eighty-one thousand, six hundred seventy-two".