1630454346 has 80 divisors (see below), whose sum is σ = 3753547776. Its totient is φ = 528734304.

The previous prime is 1630454333. The next prime is 1630454381. The reversal of 1630454346 is 6434540361.

1630454346 is a `hidden beast` number, since 1 + 6 + 304 + 5 + 4 + 346 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 1630454346.

It is an unprimeable number.

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 39 ways as a sum of consecutive naturals, for example, 1499415 + ... + 1500501.

Almost surely, 2^1630454346 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1630454346, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1876773888).

1630454346 is an abundant number, since it is smaller than the sum of its proper divisors (2123093430).

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

1630454346 is a wasteful number, since it uses less digits than its factorization.

1630454346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1345 (or 1336 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 36.

The square root of 1630454346 is about 40378.8849028796. The cubic root of 1630454346 is about 1176.9812587864.

The spelling of 1630454346 in words is "one billion, six hundred thirty million, four hundred fifty-four thousand, three hundred forty-six".