1649162304 has 168 divisors, whose sum is σ = 5137383680. Its totient is φ = 503884800.

The previous prime is 1649162287. The next prime is 1649162309. The reversal of 1649162304 is 4032619461.

1649162304 is a `hidden beast` number, since 1 + 649 + 1 + 6 + 2 + 3 + 0 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (1649162309) 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, 336834 + ... + 341694.

Almost surely, 2^1649162304 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1649162304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2568691840).

1649162304 is an abundant number, since it is smaller than the sum of its proper divisors (3488221376).

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

1649162304 is a wasteful number, since it uses less digits than its factorization.

1649162304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4929 (or 4916 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 1649162304 is about 40609.8793891339. The cubic root of 1649162304 is about 1181.4657415305.

The spelling of 1649162304 in words is "one billion, six hundred forty-nine million, one hundred sixty-two thousand, three hundred four".