393449130 has 32 divisors (see below), whose sum is σ = 1049198400. Its totient is φ = 104919696.

The previous prime is 393449107. The next prime is 393449137. The reversal of 393449130 is 31944393.

It is not an unprimeable number, because it can be changed into a prime (393449137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 728340 + ... + 728879.

It is an arithmetic number, because the mean of its divisors is an integer number (32787450).

Almost surely, 2^393449130 is an apocalyptic number.

393449130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

393449130 is an abundant number, since it is smaller than the sum of its proper divisors (655749270).

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

393449130 is a wasteful number, since it uses less digits than its factorization.

393449130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1457235 (or 1457229 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 36.

The square root of 393449130 is about 19835.5521728033. The cubic root of 393449130 is about 732.7618713695.

The spelling of 393449130 in words is "three hundred ninety-three million, four hundred forty-nine thousand, one hundred thirty".