30105494 has 16 divisors (see below), whose sum is σ = 46588608. Its totient is φ = 14579712.

The previous prime is 30105463. The next prime is 30105499. The reversal of 30105494 is 49450103.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30105499) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18227 + ... + 19809.

It is an arithmetic number, because the mean of its divisors is an integer number (2911788).

Almost surely, 2^30105494 is an apocalyptic number.

30105494 is a deficient number, since it is larger than the sum of its proper divisors (16483114).

30105494 is a wasteful number, since it uses less digits than its factorization.

30105494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1879.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 30105494 is about 5486.8473643797. The cubic root of 30105494 is about 311.0870404941.

Adding to 30105494 its reverse (49450103), we get a palindrome (79555597).

The spelling of 30105494 in words is "thirty million, one hundred five thousand, four hundred ninety-four".