2490840578 has 16 divisors (see below), whose sum is σ = 3958771320. Its totient is φ = 1171351296.

The previous prime is 2490840563. The next prime is 2490840601. The reversal of 2490840578 is 8750480942.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2138415049 + 352425529 = 46243^2 + 18773^2 .

It is a super-2 number, since 2×2490840578² = 12408573570022748168, which contains 22 as substring.

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, 26228 + ... + 75296.

Almost surely, 2^2490840578 is an apocalyptic number.

2490840578 is a deficient number, since it is larger than the sum of its proper divisors (1467930742).

2490840578 is a wasteful number, since it uses less digits than its factorization.

2490840578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50581.

The product of its (nonzero) digits is 645120, while the sum is 47.

The square root of 2490840578 is about 49908.3217309498. The cubic root of 2490840578 is about 1355.5492801729.

The spelling of 2490840578 in words is "two billion, four hundred ninety million, eight hundred forty thousand, five hundred seventy-eight".