740638730 has 16 divisors (see below), whose sum is σ = 1435699944. Its totient is φ = 273466560.

The previous prime is 740638729. The next prime is 740638733. The reversal of 740638730 is 37836047.

It can be written as a sum of positive squares in 4 ways, for example, as 678654601 + 61984129 = 26051^2 + 7873^2 .

It is not an unprimeable number, because it can be changed into a prime (740638733) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2848481 + ... + 2848740.

Almost surely, 2^740638730 is an apocalyptic number.

740638730 is a deficient number, since it is larger than the sum of its proper divisors (695061214).

740638730 is a wasteful number, since it uses less digits than its factorization.

740638730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5697241.

The product of its (nonzero) digits is 84672, while the sum is 38.

The square root of 740638730 is about 27214.6785760920. The cubic root of 740638730 is about 904.7643353287.

The spelling of 740638730 in words is "seven hundred forty million, six hundred thirty-eight thousand, seven hundred thirty".