1631740650 has 24 divisors (see below), whose sum is σ = 4046717184. Its totient is φ = 435130800.

The previous prime is 1631740633. The next prime is 1631740657. The reversal of 1631740650 is 560471361.

It is not an unprimeable number, because it can be changed into a prime (1631740657) 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 11 ways as a sum of consecutive naturals, for example, 5438986 + ... + 5439285.

It is an arithmetic number, because the mean of its divisors is an integer number (168613216).

Almost surely, 2^1631740650 is an apocalyptic number.

1631740650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1631740650 is an abundant number, since it is smaller than the sum of its proper divisors (2414976534).

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

1631740650 is a wasteful number, since it uses less digits than its factorization.

1631740650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10878286 (or 10878281 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 1631740650 is about 40394.8096913452. The cubic root of 1631740650 is about 1177.2906935455.

The spelling of 1631740650 in words is "one billion, six hundred thirty-one million, seven hundred forty thousand, six hundred fifty".