393426072 has 80 divisors (see below), whose sum is σ = 1186748640. Its totient is φ = 121051584.

The previous prime is 393426031. The next prime is 393426073. The reversal of 393426072 is 270624393.

It is a happy number.

393426072 is a `hidden beast` number, since 3 + 9 + 3 + 42 + 607 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (393426073) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 14928 + ... + 31775.

It is an arithmetic number, because the mean of its divisors is an integer number (14834358).

Almost surely, 2^393426072 is an apocalyptic number.

It is an amenable number.

393426072 is an abundant number, since it is smaller than the sum of its proper divisors (793322568).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

393426072 is a wasteful number, since it uses less digits than its factorization.

393426072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46734 (or 46721 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 36.

The square root of 393426072 is about 19834.9709351942. The cubic root of 393426072 is about 732.7475566402.

The spelling of 393426072 in words is "three hundred ninety-three million, four hundred twenty-six thousand, seventy-two".