22497854 has 4 divisors (see below), whose sum is σ = 33746784. Its totient is φ = 11248926.

The previous prime is 22497829. The next prime is 22497869. The reversal of 22497854 is 45879422.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 45879422 = 2 ⋅22939711.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5624462 + ... + 5624465.

It is an arithmetic number, because the mean of its divisors is an integer number (8436696).

Almost surely, 2^22497854 is an apocalyptic number.

22497854 is a deficient number, since it is larger than the sum of its proper divisors (11248930).

22497854 is a wasteful number, since it uses less digits than its factorization.

22497854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11248929.

The product of its digits is 161280, while the sum is 41.

The square root of 22497854 is about 4743.1902765965. The cubic root of 22497854 is about 282.3018329864.

The spelling of 22497854 in words is "twenty-two million, four hundred ninety-seven thousand, eight hundred fifty-four".