674665152 has 112 divisors (see below), whose sum is σ = 2105997312. Its totient is φ = 186531840.

The previous prime is 674665139. The next prime is 674665157. The reversal of 674665152 is 251566476.

It is a tau number, because it is divible by the number of its divisors (112).

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

It is not an unprimeable number, because it can be changed into a prime (674665157) 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 15 ways as a sum of consecutive naturals, for example, 33568 + ... + 49760.

Almost surely, 2^674665152 is an apocalyptic number.

674665152 is a gapful number since it is divisible by the number (62) 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 674665152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1052998656).

674665152 is an abundant number, since it is smaller than the sum of its proper divisors (1431332160).

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

674665152 is a wasteful number, since it uses less digits than its factorization.

674665152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16246 (or 16236 counting only the distinct ones).

The product of its digits is 302400, while the sum is 42.

The square root of 674665152 is about 25974.3171613808. The cubic root of 674665152 is about 877.0602453990.

The spelling of 674665152 in words is "six hundred seventy-four million, six hundred sixty-five thousand, one hundred fifty-two".