22049437 has 2 divisors, whose sum is σ = 22049438. Its totient is φ = 22049436.

The previous prime is 22049429. The next prime is 22049491. The reversal of 22049437 is 73494022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18567481 + 3481956 = 4309^2 + 1866^2 .

It is a cyclic number.

It is not a de Polignac number, because 22049437 - 2³ = 22049429 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22049399 and 22049408.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22049407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11024718 + 11024719.

It is an arithmetic number, because the mean of its divisors is an integer number (11024719).

Almost surely, 2^22049437 is an apocalyptic number.

It is an amenable number.

22049437 is a deficient number, since it is larger than the sum of its proper divisors (1).

22049437 is an equidigital number, since it uses as much as digits as its factorization.

22049437 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 22049437 is about 4695.6828044492. The cubic root of 22049437 is about 280.4136615302.

The spelling of 22049437 in words is "twenty-two million, forty-nine thousand, four hundred thirty-seven".