618232416 has 24 divisors (see below), whose sum is σ = 1622860344. Its totient is φ = 206077440.

The previous prime is 618232403. The next prime is 618232451. The reversal of 618232416 is 614232816.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×618232416² = 764422640386394112, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3219865 + ... + 3220056.

It is an arithmetic number, because the mean of its divisors is an integer number (67619181).

Almost surely, 2^618232416 is an apocalyptic number.

It is an amenable number.

618232416 is an abundant number, since it is smaller than the sum of its proper divisors (1004627928).

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

618232416 is a wasteful number, since it uses less digits than its factorization.

618232416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6439934 (or 6439926 counting only the distinct ones).

The product of its digits is 13824, while the sum is 33.

The square root of 618232416 is about 24864.2799212042. The cubic root of 618232416 is about 851.8907925004.

The spelling of 618232416 in words is "six hundred eighteen million, two hundred thirty-two thousand, four hundred sixteen".