30555044 has 24 divisors (see below), whose sum is σ = 59144568. Its totient is φ = 13720320.

The previous prime is 30555043. The next prime is 30555047. The reversal of 30555044 is 44055503.

It can be written as a sum of positive squares in 4 ways, for example, as 12390400 + 18164644 = 3520^2 + 4262^2 .

It is a super-2 number, since 2×30555044² = 1867221427683872, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30555043) 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 in 7 ways as a sum of consecutive naturals, for example, 6017 + ... + 9864.

It is an arithmetic number, because the mean of its divisors is an integer number (2464357).

Almost surely, 2^30555044 is an apocalyptic number.

It is an amenable number.

30555044 is a deficient number, since it is larger than the sum of its proper divisors (28589524).

30555044 is a wasteful number, since it uses less digits than its factorization.

30555044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15935 (or 15933 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 26.

The square root of 30555044 is about 5527.6617117910. The cubic root of 30555044 is about 312.6278312222.

It can be divided in two parts, 3055504 and 4, that multiplied together give a square (12222016 = 3496²).

The spelling of 30555044 in words is "thirty million, five hundred fifty-five thousand, forty-four".