20848090 has 16 divisors (see below), whose sum is σ = 38442600. Its totient is φ = 8135680.

The previous prime is 20848081. The next prime is 20848099. The reversal of 20848090 is 9084802.

20848090 = T₄₂₀ + T₄₂₁ + ... + T₅₈₃.

It is an interprime number because it is at equal distance from previous prime (20848081) and next prime (20848099).

It can be written as a sum of positive squares in 4 ways, for example, as 13024881 + 7823209 = 3609^2 + 2797^2 .

It is not an unprimeable number, because it can be changed into a prime (20848099) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25015 + ... + 25834.

Almost surely, 2^20848090 is an apocalyptic number.

20848090 is a deficient number, since it is larger than the sum of its proper divisors (17594510).

20848090 is a wasteful number, since it uses less digits than its factorization.

20848090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50897.

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 20848090 is about 4565.9708715672. The cubic root of 20848090 is about 275.2255559944.

The spelling of 20848090 in words is "twenty million, eight hundred forty-eight thousand, ninety".