400380743 has 8 divisors (see below), whose sum is σ = 460871040. Its totient is φ = 340713720.

The previous prime is 400380727. The next prime is 400380751. The reversal of 400380743 is 347083004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 400380743 - 2⁴ = 400380727 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400380763) 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, 204773 + ... + 206718.

It is an arithmetic number, because the mean of its divisors is an integer number (57608880).

Almost surely, 2^400380743 is an apocalyptic number.

400380743 is a deficient number, since it is larger than the sum of its proper divisors (60490297).

400380743 is a wasteful number, since it uses less digits than its factorization.

400380743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411637.

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 400380743 is about 20009.5163109956. The cubic root of 400380743 is about 737.0400037936.

The spelling of 400380743 in words is "four hundred million, three hundred eighty thousand, seven hundred forty-three".