1649496996 has 81 divisors (see below), whose sum is σ = 4855327659. Its totient is φ = 470797488.

The previous prime is 1649496943. The next prime is 1649496997. The reversal of 1649496996 is 6996949461.

The square root of 1649496996 is 40614.

It is a perfect power (a square), and thus also a powerful number.

1649496996 is a `hidden beast` number, since 16 + 49 + 496 + 9 + 96 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (1649496997) 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 26 ways as a sum of consecutive naturals, for example, 1705305 + ... + 1706271.

Almost surely, 2^1649496996 is an apocalyptic number.

1649496996 is the 40614-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1649496996

1649496996 is an abundant number, since it is smaller than the sum of its proper divisors (3205830663).

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

1649496996 is an equidigital number, since it uses as much as digits as its factorization.

1649496996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1958 (or 979 counting only the distinct ones).

The product of its digits is 22674816, while the sum is 63.

The cubic root of 1649496996 is about 1181.5456609708.

The spelling of 1649496996 in words is "one billion, six hundred forty-nine million, four hundred ninety-six thousand, nine hundred ninety-six".