1650251040 has 48 divisors (see below), whose sum is σ = 5198292288. Its totient is φ = 440066816.

The previous prime is 1650251027. The next prime is 1650251041. The reversal of 1650251040 is 401520561.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 1650251040.

It is not an unprimeable number, because it can be changed into a prime (1650251041) 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 7 ways as a sum of consecutive naturals, for example, 1718532 + ... + 1719491.

It is an arithmetic number, because the mean of its divisors is an integer number (108297756).

Almost surely, 2^1650251040 is an apocalyptic number.

1650251040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1650251040 is an abundant number, since it is smaller than the sum of its proper divisors (3548041248).

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

1650251040 is a wasteful number, since it uses less digits than its factorization.

1650251040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3438041 (or 3438033 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 1650251040 is about 40623.2819944425. The cubic root of 1650251040 is about 1181.7256757861.

The spelling of 1650251040 in words is "one billion, six hundred fifty million, two hundred fifty-one thousand, forty".