22873491 has 6 divisors (see below), whose sum is σ = 33039500. Its totient is φ = 15248988.

The previous prime is 22873481. The next prime is 22873507. The reversal of 22873491 is 19437822.

It is not a de Polignac number, because 22873491 - 2¹⁰ = 22872467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22873421) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1270741 + ... + 1270758.

Almost surely, 2^22873491 is an apocalyptic number.

22873491 is a deficient number, since it is larger than the sum of its proper divisors (10166009).

22873491 is a wasteful number, since it uses less digits than its factorization.

22873491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2541505 (or 2541502 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 22873491 is about 4782.6238614384. The cubic root of 22873491 is about 283.8643263549.

It can be divided in two parts, 2287 and 3491, that added together give a triangular number (5778 = T₁₀₇).

The spelling of 22873491 in words is "twenty-two million, eight hundred seventy-three thousand, four hundred ninety-one".