919044436 has 12 divisors (see below), whose sum is σ = 1610413812. Its totient is φ = 458926208.

The previous prime is 919044431. The next prime is 919044449. The reversal of 919044436 is 634440919.

It can be written as a sum of positive squares in 2 ways, for example, as 16402500 + 902641936 = 4050^2 + 30044^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (919044431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145525 + ... + 151708.

It is an arithmetic number, because the mean of its divisors is an integer number (134201151).

Almost surely, 2^919044436 is an apocalyptic number.

It is an amenable number.

919044436 is a deficient number, since it is larger than the sum of its proper divisors (691369376).

919044436 is a wasteful number, since it uses less digits than its factorization.

919044436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298010 (or 298008 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 40.

The square root of 919044436 is about 30315.7456777827. The cubic root of 919044436 is about 972.2519809940.

The spelling of 919044436 in words is "nine hundred nineteen million, forty-four thousand, four hundred thirty-six".