3520397490 has 32 divisors (see below), whose sum is σ = 8463389760. Its totient is φ = 937168704.

The previous prime is 3520397483. The next prime is 3520397497. The reversal of 3520397490 is 947930253.

It is an interprime number because it is at equal distance from previous prime (3520397483) and next prime (3520397497).

It is not an unprimeable number, because it can be changed into a prime (3520397497) 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 15 ways as a sum of consecutive naturals, for example, 82345 + ... + 117564.

It is an arithmetic number, because the mean of its divisors is an integer number (264480930).

Almost surely, 2^3520397490 is an apocalyptic number.

3520397490 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3520397490 is an abundant number, since it is smaller than the sum of its proper divisors (4942992270).

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

3520397490 is a wasteful number, since it uses less digits than its factorization.

3520397490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200506.

The product of its (nonzero) digits is 204120, while the sum is 42.

The square root of 3520397490 is about 59332.9376484934. The cubic root of 3520397490 is about 1521.2382410726.

The spelling of 3520397490 in words is "three billion, five hundred twenty million, three hundred ninety-seven thousand, four hundred ninety".