18830534 has 4 divisors (see below), whose sum is σ = 28245804. Its totient is φ = 9415266.

The previous prime is 18830533. The next prime is 18830573. The reversal of 18830534 is 43503881.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43503881 = 31 ⋅1403351.

It is a self number, because there is not a number n which added to its sum of digits gives 18830534.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18830533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4707632 + ... + 4707635.

It is an arithmetic number, because the mean of its divisors is an integer number (7061451).

Almost surely, 2^18830534 is an apocalyptic number.

18830534 is a deficient number, since it is larger than the sum of its proper divisors (9415270).

18830534 is an equidigital number, since it uses as much as digits as its factorization.

18830534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9415269.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 18830534 is about 4339.4163201979. The cubic root of 18830534 is about 266.0444552304.

The spelling of 18830534 in words is "eighteen million, eight hundred thirty thousand, five hundred thirty-four".