2440423040 has 64 divisors (see below), whose sum is σ = 6364530720. Its totient is φ = 887424000.

The previous prime is 2440423031. The next prime is 2440423057. The reversal of 2440423040 is 403240442.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×2440423040² = 11911329228325683200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2440422997 and 2440423015.

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, 166286 + ... + 180365.

Almost surely, 2^2440423040 is an apocalyptic number.

2440423040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2440423040 is an abundant number, since it is smaller than the sum of its proper divisors (3924107680).

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

2440423040 is a wasteful number, since it uses less digits than its factorization.

2440423040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346681 (or 346669 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 23.

The square root of 2440423040 is about 49400.6380525596. The cubic root of 2440423040 is about 1346.3408986649.

Adding to 2440423040 its reverse (403240442), we get a palindrome (2843663482).

The spelling of 2440423040 in words is "two billion, four hundred forty million, four hundred twenty-three thousand, forty".