400384486 has 4 divisors (see below), whose sum is σ = 600576732. Its totient is φ = 200192242.

The previous prime is 400384471. The next prime is 400384507. The reversal of 400384486 is 684483004.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100096120 + ... + 100096123.

It is an arithmetic number, because the mean of its divisors is an integer number (150144183).

Almost surely, 2^400384486 is an apocalyptic number.

400384486 is a deficient number, since it is larger than the sum of its proper divisors (200192246).

400384486 is a wasteful number, since it uses less digits than its factorization.

400384486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200192245.

The product of its (nonzero) digits is 73728, while the sum is 37.

The square root of 400384486 is about 20009.6098412738. The cubic root of 400384486 is about 737.0423005508.

The spelling of 400384486 in words is "four hundred million, three hundred eighty-four thousand, four hundred eighty-six".