674021436 has 48 divisors (see below), whose sum is σ = 1717244928. Its totient is φ = 204064000.

The previous prime is 674021429. The next prime is 674021459. The reversal of 674021436 is 634120476.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 674021397 and 674021406.

It is a congruent number.

It is an unprimeable number.

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, 239236 + ... + 242036.

It is an arithmetic number, because the mean of its divisors is an integer number (35775936).

Almost surely, 2^674021436 is an apocalyptic number.

674021436 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

674021436 is an abundant number, since it is smaller than the sum of its proper divisors (1043223492).

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

674021436 is a wasteful number, since it uses less digits than its factorization.

674021436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4642 (or 4640 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 33.

The square root of 674021436 is about 25961.9228101464. The cubic root of 674021436 is about 876.7812144526.

The spelling of 674021436 in words is "six hundred seventy-four million, twenty-one thousand, four hundred thirty-six".