2046443840 has 84 divisors (see below), whose sum is σ = 5668745076. Its totient is φ = 701632512.

The previous prime is 2046443807. The next prime is 2046443843. The reversal of 2046443840 is 483446402.

It can be written as a sum of positive squares in 2 ways, for example, as 1125199936 + 921243904 = 33544^2 + 30352^2 .

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 2046443840.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2046443843) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49577 + ... + 80936.

Almost surely, 2^2046443840 is an apocalyptic number.

2046443840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2046443840 is an abundant number, since it is smaller than the sum of its proper divisors (3622301236).

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

2046443840 is a wasteful number, since it uses less digits than its factorization.

2046443840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130544 (or 130527 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 35.

The square root of 2046443840 is about 45237.6374272574. The cubic root of 2046443840 is about 1269.5991129348.

The spelling of 2046443840 in words is "two billion, forty-six million, four hundred forty-three thousand, eight hundred forty".