394503252 has 48 divisors (see below), whose sum is σ = 1081440192. Its totient is φ = 110350080.

The previous prime is 394503247. The next prime is 394503257. The reversal of 394503252 is 252305493.

It is an interprime number because it is at equal distance from previous prime (394503247) and next prime (394503257).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394503257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113233 + ... + 116664.

It is an arithmetic number, because the mean of its divisors is an integer number (22530004).

Almost surely, 2^394503252 is an apocalyptic number.

It is an amenable number.

394503252 is an abundant number, since it is smaller than the sum of its proper divisors (686936940).

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

394503252 is a wasteful number, since it uses less digits than its factorization.

394503252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229928 (or 229926 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 33.

The square root of 394503252 is about 19862.1059306409. The cubic root of 394503252 is about 733.4156887307.

The spelling of 394503252 in words is "three hundred ninety-four million, five hundred three thousand, two hundred fifty-two".