399283245505 has 8 divisors (see below), whose sum is σ = 479180477952. Its totient is φ = 319399540848.

The previous prime is 399283245503. The next prime is 399283245593. The reversal of 399283245505 is 505542382993.

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 399283245505 - 2¹ = 399283245503 is a prime.

It is a super-2 number, since 2×399283245505² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (399283245503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3316897 + ... + 3435166.

It is an arithmetic number, because the mean of its divisors is an integer number (59897559744).

Almost surely, 2^399283245505 is an apocalyptic number.

It is an amenable number.

399283245505 is a deficient number, since it is larger than the sum of its proper divisors (79897232447).

399283245505 is a wasteful number, since it uses less digits than its factorization.

399283245505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6763895.

The product of its (nonzero) digits is 11664000, while the sum is 55.

The spelling of 399283245505 in words is "three hundred ninety-nine billion, two hundred eighty-three million, two hundred forty-five thousand, five hundred five".