400493349 has 8 divisors (see below), whose sum is σ = 593323520. Its totient is φ = 266995548.

The previous prime is 400493339. The next prime is 400493363. The reversal of 400493349 is 943394004.

It is not a de Polignac number, because 400493349 - 2¹⁶ = 400427813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400493329) 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 7 ways as a sum of consecutive naturals, for example, 7416517 + ... + 7416570.

It is an arithmetic number, because the mean of its divisors is an integer number (74165440).

Almost surely, 2^400493349 is an apocalyptic number.

It is an amenable number.

400493349 is a deficient number, since it is larger than the sum of its proper divisors (192830171).

400493349 is a wasteful number, since it uses less digits than its factorization.

400493349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14833096 (or 14833090 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 36.

The square root of 400493349 is about 20012.3299243242. The cubic root of 400493349 is about 737.1090941520.

The spelling of 400493349 in words is "four hundred million, four hundred ninety-three thousand, three hundred forty-nine".