608631408 has 480 divisors, whose sum is σ = 2339850240. Its totient is φ = 148366080.

The previous prime is 608631379. The next prime is 608631409. The reversal of 608631408 is 804136806.

It is a happy number.

608631408 is a `hidden beast` number, since 608 + 6 + 3 + 1 + 40 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (608631409) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 5688091 + ... + 5688197.

It is an arithmetic number, because the mean of its divisors is an integer number (4874688).

Almost surely, 2^608631408 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 608631408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1169925120).

608631408 is an abundant number, since it is smaller than the sum of its proper divisors (1731218832).

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

608631408 is a wasteful number, since it uses less digits than its factorization.

608631408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167 (or 149 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 608631408 is about 24670.4561773795. The cubic root of 608631408 is about 847.4578755788.

The spelling of 608631408 in words is "six hundred eight million, six hundred thirty-one thousand, four hundred eight".