394949760 has 64 divisors (see below), whose sum is σ = 1258908480. Its totient is φ = 105319424.

The previous prime is 394949749. The next prime is 394949771. The reversal of 394949760 is 67949493.

It is an interprime number because it is at equal distance from previous prime (394949749) and next prime (394949771).

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100932 + ... + 104771.

It is an arithmetic number, because the mean of its divisors is an integer number (19670445).

Almost surely, 2^394949760 is an apocalyptic number.

394949760 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

394949760 is an abundant number, since it is smaller than the sum of its proper divisors (863958720).

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

394949760 is a wasteful number, since it uses less digits than its factorization.

394949760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205725 (or 205713 counting only the distinct ones).

The product of its (nonzero) digits is 1469664, while the sum is 51.

The square root of 394949760 is about 19873.3429497908. The cubic root of 394949760 is about 733.6922834102.

The spelling of 394949760 in words is "three hundred ninety-four million, nine hundred forty-nine thousand, seven hundred sixty".