20444099 has 12 divisors (see below), whose sum is σ = 22324536. Its totient is φ = 18712512.

The previous prime is 20444087. The next prime is 20444111. The reversal of 20444099 is 99044402.

It is an interprime number because it is at equal distance from previous prime (20444087) and next prime (20444111).

It is a de Polignac number, because none of the positive numbers 2^k-20444099 is a prime.

It is a super-2 number, since 2×20444099² = 835922367843602, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20444009) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22712 + ... + 23594.

It is an arithmetic number, because the mean of its divisors is an integer number (1860378).

Almost surely, 2^20444099 is an apocalyptic number.

20444099 is a deficient number, since it is larger than the sum of its proper divisors (1880437).

20444099 is a wasteful number, since it uses less digits than its factorization.

20444099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1046 (or 1033 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 20444099 is about 4521.5151221687. The cubic root of 20444099 is about 273.4361885695.

The spelling of 20444099 in words is "twenty million, four hundred forty-four thousand, ninety-nine".