383740545 has 8 divisors (see below), whose sum is σ = 613984896. Its totient is φ = 204661616.

The previous prime is 383740531. The next prime is 383740573. The reversal of 383740545 is 545047383.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 383740545 - 2⁷ = 383740417 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12791337 + ... + 12791366.

It is an arithmetic number, because the mean of its divisors is an integer number (76748112).

Almost surely, 2^383740545 is an apocalyptic number.

It is an amenable number.

383740545 is a deficient number, since it is larger than the sum of its proper divisors (230244351).

383740545 is a wasteful number, since it uses less digits than its factorization.

383740545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25582711.

The product of its (nonzero) digits is 201600, while the sum is 39.

The square root of 383740545 is about 19589.2966948791. The cubic root of 383740545 is about 726.6844985056.

The spelling of 383740545 in words is "three hundred eighty-three million, seven hundred forty thousand, five hundred forty-five".