1356670404 has 72 divisors (see below), whose sum is σ = 3578053920. Its totient is φ = 444445056.

The previous prime is 1356670351. The next prime is 1356670417. The reversal of 1356670404 is 4040766531.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3132972 + ... + 3133404.

Almost surely, 2^1356670404 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 1356670404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1789026960).

1356670404 is an abundant number, since it is smaller than the sum of its proper divisors (2221383516).

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

1356670404 is an equidigital number, since it uses as much as digits as its factorization.

1356670404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 946 (or 505 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 1356670404 is about 36833.0069910128. The cubic root of 1356670404 is about 1107.0267544448.

The spelling of 1356670404 in words is "one billion, three hundred fifty-six million, six hundred seventy thousand, four hundred four".