393444054 has 20 divisors (see below), whose sum is σ = 881606484. Its totient is φ = 131147964.

The previous prime is 393444053. The next prime is 393444089. The reversal of 393444054 is 450444393.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (393444053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1214172 + ... + 1214495.

Almost surely, 2^393444054 is an apocalyptic number.

393444054 is an abundant number, since it is smaller than the sum of its proper divisors (488162430).

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

393444054 is a wasteful number, since it uses less digits than its factorization.

393444054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2428681 (or 2428672 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 36.

The square root of 393444054 is about 19835.4242203186. The cubic root of 393444054 is about 732.7587201656.

The spelling of 393444054 in words is "three hundred ninety-three million, four hundred forty-four thousand, fifty-four".