1355372946 has 16 divisors (see below), whose sum is σ = 3011940000. Its totient is φ = 451790964.

The previous prime is 1355372929. The next prime is 1355372947. The reversal of 1355372946 is 6492735531.

1355372946 is a `hidden beast` number, since 1 + 3 + 553 + 7 + 2 + 94 + 6 = 666.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1355372947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12549696 + ... + 12549803.

It is an arithmetic number, because the mean of its divisors is an integer number (188246250).

Almost surely, 2^1355372946 is an apocalyptic number.

1355372946 is an abundant number, since it is smaller than the sum of its proper divisors (1656567054).

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

1355372946 is a wasteful number, since it uses less digits than its factorization.

1355372946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25099510 (or 25099504 counting only the distinct ones).

The product of its digits is 680400, while the sum is 45.

The square root of 1355372946 is about 36815.3900699151. The cubic root of 1355372946 is about 1106.6737385034.

The spelling of 1355372946 in words is "one billion, three hundred fifty-five million, three hundred seventy-two thousand, nine hundred forty-six".