608781264 has 240 divisors, whose sum is σ = 1986729984. Its totient is φ = 157248000.

The previous prime is 608781263. The next prime is 608781269. The reversal of 608781264 is 462187806.

It is a super-2 number, since 2×608781264² = 741229254794875392, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (608781263) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 4031589 + ... + 4031739.

Almost surely, 2^608781264 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 608781264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (993364992).

608781264 is an abundant number, since it is smaller than the sum of its proper divisors (1377948720).

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

608781264 is a wasteful number, since it uses less digits than its factorization.

608781264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266 (or 247 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 42.

The square root of 608781264 is about 24673.4931454790. The cubic root of 608781264 is about 847.5274229951.

The spelling of 608781264 in words is "six hundred eight million, seven hundred eighty-one thousand, two hundred sixty-four".