393924690045 has 32 divisors (see below), whose sum is σ = 700343424000. Its totient is φ = 210083308992.

The previous prime is 393924690017. The next prime is 393924690059. The reversal of 393924690045 is 540096429393.

393924690045 is a `hidden beast` number, since 3 + 93 + 92 + 469 + 0 + 0 + 4 + 5 = 666.

It is not a de Polignac number, because 393924690045 - 2¹⁰ = 393924689021 is a prime.

It is a super-2 number, since 2×393924690045² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 393924689973 and 393924690000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3508599 + ... + 3619131.

It is an arithmetic number, because the mean of its divisors is an integer number (21885732000).

Almost surely, 2^393924690045 is an apocalyptic number.

It is an amenable number.

393924690045 is a deficient number, since it is larger than the sum of its proper divisors (306418733955).

393924690045 is a wasteful number, since it uses less digits than its factorization.

393924690045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136946 (or 136940 counting only the distinct ones).

The product of its (nonzero) digits is 6298560, while the sum is 54.

The spelling of 393924690045 in words is "three hundred ninety-three billion, nine hundred twenty-four million, six hundred ninety thousand, forty-five".