8020090 has 64 divisors (see below), whose sum is σ = 17418240. Its totient is φ = 2626560.

The previous prime is 8020069. The next prime is 8020121. The reversal of 8020090 is 900208.

8020090 = T₁₈₉ + T₁₉₀ + ... + T₃₇₉.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41895 + ... + 42085.

It is an arithmetic number, because the mean of its divisors is an integer number (272160).

Almost surely, 2^8020090 is an apocalyptic number.

8020090 is an abundant number, since it is smaller than the sum of its proper divisors (9398150).

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

8020090 is a wasteful number, since it uses less digits than its factorization.

8020090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 8020090 is about 2831.9763417091. The cubic root of 8020090 is about 200.1672767202.

Adding to 8020090 its reverse (900208), we get a palindrome (8920298).

The spelling of 8020090 in words is "eight million, twenty thousand, ninety".