1630331474 has 8 divisors (see below), whose sum is σ = 2445996528. Its totient is φ = 814999300.

The previous prime is 1630331473. The next prime is 1630331491. The reversal of 1630331474 is 4741330361.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1630331474.

It is not an unprimeable number, because it can be changed into a prime (1630331473) 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 3 ways as a sum of consecutive naturals, for example, 70592 + ... + 90795.

It is an arithmetic number, because the mean of its divisors is an integer number (305749566).

Almost surely, 2^1630331474 is an apocalyptic number.

1630331474 is a deficient number, since it is larger than the sum of its proper divisors (815665054).

1630331474 is a wasteful number, since it uses less digits than its factorization.

1630331474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166440.

The product of its (nonzero) digits is 18144, while the sum is 32.

The square root of 1630331474 is about 40377.3633859369. The cubic root of 1630331474 is about 1176.9516920433.

It can be divided in two parts, 16 and 30331474, that multiplied together give a palindrome (485303584).

The spelling of 1630331474 in words is "one billion, six hundred thirty million, three hundred thirty-one thousand, four hundred seventy-four".