2628929890 has 32 divisors (see below), whose sum is σ = 4935135744. Its totient is φ = 1007147520.

The previous prime is 2628929857. The next prime is 2628929899. The reversal of 2628929890 is 989298262.

It is a super-2 number, since 2×2628929890² = 13822544733070824200, which contains 22 as substring.

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (2628929899) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13644 + ... + 73783.

It is an arithmetic number, because the mean of its divisors is an integer number (154222992).

Almost surely, 2^2628929890 is an apocalyptic number.

2628929890 is a deficient number, since it is larger than the sum of its proper divisors (2306205854).

2628929890 is a wasteful number, since it uses less digits than its factorization.

2628929890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87562.

The product of its (nonzero) digits is 2239488, while the sum is 55.

The square root of 2628929890 is about 51273.0912857807. The cubic root of 2628929890 is about 1380.1501429442.

The spelling of 2628929890 in words is "two billion, six hundred twenty-eight million, nine hundred twenty-nine thousand, eight hundred ninety".