2478890000 has 50 divisors (see below), whose sum is σ = 6001664790. Its totient is φ = 991552000.

The previous prime is 2478889993. The next prime is 2478890017. The reversal of 2478890000 is 988742.

It can be written as a sum of positive squares in 5 ways, for example, as 1203257344 + 1275632656 = 34688^2 + 35716^2 .

It is a tau number, because it is divible by the number of its divisors (50).

It is a super-2 number, since 2×2478890000² = 12289791264200000000, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 113945 + ... + 133944.

Almost surely, 2^2478890000 is an apocalyptic number.

2478890000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2478890000 is an abundant number, since it is smaller than the sum of its proper divisors (3522774790).

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

2478890000 is an equidigital number, since it uses as much as digits as its factorization.

2478890000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247917 (or 247896 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 2478890000 is about 49788.4524764528. The cubic root of 2478890000 is about 1353.3779148981.

The spelling of 2478890000 in words is "two billion, four hundred seventy-eight million, eight hundred ninety thousand".