2043609440 has 48 divisors (see below), whose sum is σ = 5112035712. Its totient is φ = 769357824.

The previous prime is 2043609437. The next prime is 2043609461. The reversal of 2043609440 is 449063402.

It is a super-2 number, since 2×2043609440² = 8352679086514227200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 2043609397 and 2043609406.

It is a congruent 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, 372944 + ... + 378383.

It is an arithmetic number, because the mean of its divisors is an integer number (106500744).

Almost surely, 2^2043609440 is an apocalyptic number.

2043609440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2043609440 is an abundant number, since it is smaller than the sum of its proper divisors (3068426272).

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

2043609440 is a wasteful number, since it uses less digits than its factorization.

2043609440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 751359 (or 751351 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 32.

The square root of 2043609440 is about 45206.2986761801. The cubic root of 2043609440 is about 1269.0126949561.

The spelling of 2043609440 in words is "two billion, forty-three million, six hundred nine thousand, four hundred forty".