674161356 has 48 divisors (see below), whose sum is σ = 1722002688. Its totient is φ = 203582400.

The previous prime is 674161337. The next prime is 674161379. The reversal of 674161356 is 653161476.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29961 + ... + 47391.

It is an arithmetic number, because the mean of its divisors is an integer number (35875056).

Almost surely, 2^674161356 is an apocalyptic number.

674161356 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 674161356, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (861001344).

674161356 is an abundant number, since it is smaller than the sum of its proper divisors (1047841332).

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

674161356 is a wasteful number, since it uses less digits than its factorization.

674161356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17742 (or 17740 counting only the distinct ones).

The product of its digits is 90720, while the sum is 39.

The square root of 674161356 is about 25964.6173859736. The cubic root of 674161356 is about 876.8418805447.

The spelling of 674161356 in words is "six hundred seventy-four million, one hundred sixty-one thousand, three hundred fifty-six".