18440822 has 8 divisors (see below), whose sum is σ = 28040376. Its totient is φ = 9094032.

The previous prime is 18440813. The next prime is 18440831. The reversal of 18440822 is 22804481.

It is an interprime number because it is at equal distance from previous prime (18440813) and next prime (18440831).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63008 + ... + 63299.

It is an arithmetic number, because the mean of its divisors is an integer number (3505047).

Almost surely, 2^18440822 is an apocalyptic number.

18440822 is a deficient number, since it is larger than the sum of its proper divisors (9599554).

18440822 is a wasteful number, since it uses less digits than its factorization.

18440822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126382.

The product of its (nonzero) digits is 4096, while the sum is 29.

The square root of 18440822 is about 4294.2778205421. The cubic root of 18440822 is about 264.1963167114.

It can be divided in two parts, 184408 and 22, that multiplied together give a triangular number (4056976 = T₂₈₄₈).

The spelling of 18440822 in words is "eighteen million, four hundred forty thousand, eight hundred twenty-two".