603661044 has 96 divisors (see below), whose sum is σ = 1660538880. Its totient is φ = 167110272.

The previous prime is 603660991. The next prime is 603661049. The reversal of 603661044 is 440166306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (603661049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 421722 + ... + 423150.

It is an arithmetic number, because the mean of its divisors is an integer number (17297280).

Almost surely, 2^603661044 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 603661044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (830269440).

603661044 is an abundant number, since it is smaller than the sum of its proper divisors (1056877836).

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

603661044 is a wasteful number, since it uses less digits than its factorization.

603661044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1597 (or 1595 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 603661044 is about 24569.5145251183. The cubic root of 603661044 is about 845.1446569100.

The spelling of 603661044 in words is "six hundred three million, six hundred sixty-one thousand, forty-four".