727240090 has 8 divisors (see below), whose sum is σ = 1309032180. Its totient is φ = 290896032.

The previous prime is 727240079. The next prime is 727240091. The reversal of 727240090 is 90042727.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 726895521 + 344569 = 26961^2 + 587^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (727240091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36361995 + ... + 36362014.

Almost surely, 2^727240090 is an apocalyptic number.

727240090 is a deficient number, since it is larger than the sum of its proper divisors (581792090).

727240090 is a wasteful number, since it uses less digits than its factorization.

727240090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72724016.

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 727240090 is about 26967.3893805092. The cubic root of 727240090 is about 899.2751736102.

The spelling of 727240090 in words is "seven hundred twenty-seven million, two hundred forty thousand, ninety".