2470345840 has 20 divisors (see below), whose sum is σ = 5743554264. Its totient is φ = 988138304.

The previous prime is 2470345793. The next prime is 2470345841. The reversal of 2470345840 is 485430742.

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×2470345840² = 12205217138410611200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2470345840.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2470345841) 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 3 ways as a sum of consecutive naturals, for example, 15439582 + ... + 15439741.

Almost surely, 2^2470345840 is an apocalyptic number.

2470345840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2470345840 is an abundant number, since it is smaller than the sum of its proper divisors (3273208424).

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

2470345840 is a wasteful number, since it uses less digits than its factorization.

2470345840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30879336 (or 30879330 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 37.

The square root of 2470345840 is about 49702.5737764152. The cubic root of 2470345840 is about 1351.8211981838.

The spelling of 2470345840 in words is "two billion, four hundred seventy million, three hundred forty-five thousand, eight hundred forty".