394621248 has 56 divisors (see below), whose sum is σ = 1193263552. Its totient is φ = 112748544.

The previous prime is 394621247. The next prime is 394621267. The reversal of 394621248 is 842126493.

It is a tau number, because it is divible by the number of its divisors (56).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394621247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145465 + ... + 148152.

Almost surely, 2^394621248 is an apocalyptic number.

It is an amenable number.

394621248 is an abundant number, since it is smaller than the sum of its proper divisors (798642304).

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

394621248 is a wasteful number, since it uses less digits than its factorization.

394621248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293639 (or 293629 counting only the distinct ones).

The product of its digits is 82944, while the sum is 39.

The square root of 394621248 is about 19865.0760884523. The cubic root of 394621248 is about 733.4888030338.

The spelling of 394621248 in words is "three hundred ninety-four million, six hundred twenty-one thousand, two hundred forty-eight".