1649243152 has 40 divisors (see below), whose sum is σ = 3441922560. Its totient is φ = 763319040.

The previous prime is 1649243147. The next prime is 1649243177. The reversal of 1649243152 is 2513429461.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60877 + ... + 83692.

It is an arithmetic number, because the mean of its divisors is an integer number (86048064).

Almost surely, 2^1649243152 is an apocalyptic number.

It is an amenable number.

1649243152 is an abundant number, since it is smaller than the sum of its proper divisors (1792679408).

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

1649243152 is a wasteful number, since it uses less digits than its factorization.

1649243152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144631 (or 144625 counting only the distinct ones).

The product of its digits is 51840, while the sum is 37.

The square root of 1649243152 is about 40610.8747997381. The cubic root of 1649243152 is about 1181.4850478133.

The spelling of 1649243152 in words is "one billion, six hundred forty-nine million, two hundred forty-three thousand, one hundred fifty-two".