618628296 has 256 divisors, whose sum is σ = 1959552000. Its totient is φ = 159943680.

The previous prime is 618628289. The next prime is 618628313. The reversal of 618628296 is 692826816.

It is a happy number.

It is a super-2 number, since 2×618628296² = 765401937223727232, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3455935 + ... + 3456113.

It is an arithmetic number, because the mean of its divisors is an integer number (7654500).

Almost surely, 2^618628296 is an apocalyptic number.

618628296 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 618628296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (979776000).

618628296 is an abundant number, since it is smaller than the sum of its proper divisors (1340923704).

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

618628296 is a wasteful number, since it uses less digits than its factorization.

618628296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284 (or 280 counting only the distinct ones).

The product of its digits is 497664, while the sum is 48.

The square root of 618628296 is about 24872.2394649135. The cubic root of 618628296 is about 852.0725874368.

The spelling of 618628296 in words is "six hundred eighteen million, six hundred twenty-eight thousand, two hundred ninety-six".