1630395970 has 48 divisors (see below), whose sum is σ = 3412277568. Its totient is φ = 549436320.

The previous prime is 1630395959. The next prime is 1630395971. The reversal of 1630395970 is 795930361.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1630395971) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 240325 + ... + 247015.

It is an arithmetic number, because the mean of its divisors is an integer number (71089116).

Almost surely, 2^1630395970 is an apocalyptic number.

1630395970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1630395970 is an abundant number, since it is smaller than the sum of its proper divisors (1781881598).

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

1630395970 is an equidigital number, since it uses as much as digits as its factorization.

1630395970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6823 (or 6764 counting only the distinct ones).

The product of its (nonzero) digits is 153090, while the sum is 43.

The square root of 1630395970 is about 40378.1620433620. The cubic root of 1630395970 is about 1176.9672119292.

The spelling of 1630395970 in words is "one billion, six hundred thirty million, three hundred ninety-five thousand, nine hundred seventy".