3561389490 has 32 divisors (see below), whose sum is σ = 8778346560. Its totient is φ = 924035904.

The previous prime is 3561389467. The next prime is 3561389497. The reversal of 3561389490 is 949831653.

It is not an unprimeable number, because it can be changed into a prime (3561389497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1603120 + ... + 1605339.

It is an arithmetic number, because the mean of its divisors is an integer number (274323330).

Almost surely, 2^3561389490 is an apocalyptic number.

3561389490 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3561389490 is an abundant number, since it is smaller than the sum of its proper divisors (5216957070).

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

3561389490 is a wasteful number, since it uses less digits than its factorization.

3561389490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3208506.

The product of its (nonzero) digits is 699840, while the sum is 48.

The square root of 3561389490 is about 59677.3783774053. The cubic root of 3561389490 is about 1527.1199740708.

The spelling of 3561389490 in words is "three billion, five hundred sixty-one million, three hundred eighty-nine thousand, four hundred ninety".