400380741 has 12 divisors (see below), whose sum is σ = 579072832. Its totient is φ = 266576616.

The previous prime is 400380727. The next prime is 400380751. The reversal of 400380741 is 147083004.

It is not a de Polignac number, because 400380741 - 2⁷ = 400380613 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 (400380751) 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 11 ways as a sum of consecutive naturals, for example, 21181 + ... + 35346.

Almost surely, 2^400380741 is an apocalyptic number.

It is an amenable number.

400380741 is a deficient number, since it is larger than the sum of its proper divisors (178692091).

400380741 is a wasteful number, since it uses less digits than its factorization.

400380741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57320 (or 57317 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 400380741 is about 20009.5162610194. The cubic root of 400380741 is about 737.0400025663.

The spelling of 400380741 in words is "four hundred million, three hundred eighty thousand, seven hundred forty-one".