1641123344 has 20 divisors (see below), whose sum is σ = 3633916224. Its totient is φ = 703338528.

The previous prime is 1641123343. The next prime is 1641123361. The reversal of 1641123344 is 4433211461.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1641123343) 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, 7326332 + ... + 7326555.

Almost surely, 2^1641123344 is an apocalyptic number.

1641123344 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1641123344 is an abundant number, since it is smaller than the sum of its proper divisors (1992792880).

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

1641123344 is a wasteful number, since it uses less digits than its factorization.

1641123344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14652902 (or 14652896 counting only the distinct ones).

The product of its digits is 6912, while the sum is 29.

The square root of 1641123344 is about 40510.7805898627. The cubic root of 1641123344 is about 1179.5429006149.

The spelling of 1641123344 in words is "one billion, six hundred forty-one million, one hundred twenty-three thousand, three hundred forty-four".