3505681490 has 16 divisors (see below), whose sum is σ = 6366071448. Its totient is φ = 1389862656.

The previous prime is 3505681483. The next prime is 3505681499. The reversal of 3505681490 is 941865053.

It can be written as a sum of positive squares in 4 ways, for example, as 937523161 + 2568158329 = 30619^2 + 50677^2 .

It is not an unprimeable number, because it can be changed into a prime (3505681499) 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, 1550057 + ... + 1552316.

Almost surely, 2^3505681490 is an apocalyptic number.

3505681490 is a deficient number, since it is larger than the sum of its proper divisors (2860389958).

3505681490 is a wasteful number, since it uses less digits than its factorization.

3505681490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3102493.

The product of its (nonzero) digits is 129600, while the sum is 41.

The square root of 3505681490 is about 59208.7957148260. The cubic root of 3505681490 is about 1519.1155822778.

The spelling of 3505681490 in words is "three billion, five hundred five million, six hundred eighty-one thousand, four hundred ninety".