383142447 has 32 divisors (see below), whose sum is σ = 603187200. Its totient is φ = 239531904.

The previous prime is 383142407. The next prime is 383142457. The reversal of 383142447 is 744241383.

It is not a de Polignac number, because 383142447 - 2¹⁵ = 383109679 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (383142407) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 139554 + ... + 142272.

It is an arithmetic number, because the mean of its divisors is an integer number (18849600).

Almost surely, 2^383142447 is an apocalyptic number.

383142447 is a deficient number, since it is larger than the sum of its proper divisors (220044753).

383142447 is a wasteful number, since it uses less digits than its factorization.

383142447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3052 (or 3046 counting only the distinct ones).

The product of its digits is 64512, while the sum is 36.

The square root of 383142447 is about 19574.0248032948. The cubic root of 383142447 is about 726.3067653814.

The spelling of 383142447 in words is "three hundred eighty-three million, one hundred forty-two thousand, four hundred forty-seven".