20496650 has 12 divisors (see below), whose sum is σ = 38123862. Its totient is φ = 8198640.

The previous prime is 20496647. The next prime is 20496667. The reversal of 20496650 is 5669402.

20496650 = T₁₂₆₈ + T₁₂₆₉ + ... + T₁₂₉₂.

It can be written as a sum of positive squares in 3 ways, for example, as 8014561 + 12482089 = 2831^2 + 3533^2 .

It is a super-2 number, since 2×20496650² = 840225322445000, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 204917 + ... + 205016.

Almost surely, 2^20496650 is an apocalyptic number.

20496650 is a deficient number, since it is larger than the sum of its proper divisors (17627212).

20496650 is a wasteful number, since it uses less digits than its factorization.

20496650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409945 (or 409940 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 20496650 is about 4527.3226083415. The cubic root of 20496650 is about 273.6702748731.

The spelling of 20496650 in words is "twenty million, four hundred ninety-six thousand, six hundred fifty".