20122437 has 16 divisors (see below), whose sum is σ = 27353088. Its totient is φ = 13156080.

The previous prime is 20122429. The next prime is 20122469. The reversal of 20122437 is 73422102.

It is not a de Polignac number, because 20122437 - 2³ = 20122429 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20122477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52348 + ... + 52730.

It is an arithmetic number, because the mean of its divisors is an integer number (1709568).

Almost surely, 2^20122437 is an apocalyptic number.

It is an amenable number.

20122437 is a deficient number, since it is larger than the sum of its proper divisors (7230651).

20122437 is a wasteful number, since it uses less digits than its factorization.

20122437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 680.

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 20122437 is about 4485.8039413242. The cubic root of 20122437 is about 271.9945437559.

Adding to 20122437 its reverse (73422102), we get a palindrome (93544539).

The spelling of 20122437 in words is "twenty million, one hundred twenty-two thousand, four hundred thirty-seven".