1356429447 has 24 divisors (see below), whose sum is σ = 2026352640. Its totient is φ = 873821520.

The previous prime is 1356429421. The next prime is 1356429491. The reversal of 1356429447 is 7449246531.

1356429447 is a `hidden beast` number, since 1 + 356 + 4 + 294 + 4 + 7 = 666.

It is not a de Polignac number, because 1356429447 - 2²⁴ = 1339652231 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1356429407) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13122 + ... + 53712.

It is an arithmetic number, because the mean of its divisors is an integer number (84431360).

Almost surely, 2^1356429447 is an apocalyptic number.

1356429447 is a deficient number, since it is larger than the sum of its proper divisors (669923193).

1356429447 is a wasteful number, since it uses less digits than its factorization.

1356429447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40723 (or 40720 counting only the distinct ones).

The product of its digits is 725760, while the sum is 45.

The square root of 1356429447 is about 36829.7359072801. The cubic root of 1356429447 is about 1106.9612112250.

The spelling of 1356429447 in words is "one billion, three hundred fifty-six million, four hundred twenty-nine thousand, four hundred forty-seven".