2978069890 has 16 divisors (see below), whose sum is σ = 5376726720. Its totient is φ = 1187627760.

The previous prime is 2978069869. The next prime is 2978069909. The reversal of 2978069890 is 989608792.

It is a super-2 number, since 2×2978069890² = 17737800539449224200, 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, 446550 + ... + 453169.

It is an arithmetic number, because the mean of its divisors is an integer number (336045420).

Almost surely, 2^2978069890 is an apocalyptic number.

2978069890 is a deficient number, since it is larger than the sum of its proper divisors (2398656830).

2978069890 is a wasteful number, since it uses less digits than its factorization.

2978069890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 900057.

The product of its (nonzero) digits is 3919104, while the sum is 58.

The square root of 2978069890 is about 54571.6949526034. The cubic root of 2978069890 is about 1438.7266730618.

The spelling of 2978069890 in words is "two billion, nine hundred seventy-eight million, sixty-nine thousand, eight hundred ninety".