1616401344 has 56 divisors (see below), whose sum is σ = 4528309968. Its totient is φ = 507105280.

The previous prime is 1616401313. The next prime is 1616401373. The reversal of 1616401344 is 4431046161.

It is a super-2 number, since 2×1616401344² = 5225506609770012672, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 244347 + ... + 250874.

It is an arithmetic number, because the mean of its divisors is an integer number (80862678).

Almost surely, 2^1616401344 is an apocalyptic number.

It is an amenable number.

1616401344 is an abundant number, since it is smaller than the sum of its proper divisors (2911908624).

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

1616401344 is a wasteful number, since it uses less digits than its factorization.

1616401344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495253 (or 495243 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 1616401344 is about 40204.4940771551. The cubic root of 1616401344 is about 1173.5900018153.

The spelling of 1616401344 in words is "one billion, six hundred sixteen million, four hundred one thousand, three hundred forty-four".