1650423012 has 48 divisors (see below), whose sum is σ = 4543107072. Its totient is φ = 456337440.

The previous prime is 1650422957. The next prime is 1650423013. The reversal of 1650423012 is 2103240561.

It is a super-2 number, since 2×1650423012² = 5447792237078304288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1650423013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 314298 + ... + 319505.

It is an arithmetic number, because the mean of its divisors is an integer number (94648064).

Almost surely, 2^1650423012 is an apocalyptic number.

1650423012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1650423012 is an abundant number, since it is smaller than the sum of its proper divisors (2892684060).

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

1650423012 is a wasteful number, since it uses less digits than its factorization.

1650423012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 633848 (or 633846 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 1650423012 is about 40625.3986072752. The cubic root of 1650423012 is about 1181.7667234134.

Adding to 1650423012 its reverse (2103240561), we get a palindrome (3753663573).

The spelling of 1650423012 in words is "one billion, six hundred fifty million, four hundred twenty-three thousand, twelve".