30442044 has 12 divisors (see below), whose sum is σ = 71031464. Its totient is φ = 10147344.

The previous prime is 30442039. The next prime is 30442051. The reversal of 30442044 is 44024403.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 30442044.

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, 1268407 + ... + 1268430.

Almost surely, 2^30442044 is an apocalyptic number.

It is an amenable number.

30442044 is an abundant number, since it is smaller than the sum of its proper divisors (40589420).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30442044 is a wasteful number, since it uses less digits than its factorization.

30442044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2536844 (or 2536842 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 21.

The square root of 30442044 is about 5517.4309238993. The cubic root of 30442044 is about 312.2419638475.

Adding to 30442044 its reverse (44024403), we get a palindrome (74466447).

The spelling of 30442044 in words is "thirty million, four hundred forty-two thousand, forty-four".