400049582 has 8 divisors (see below), whose sum is σ = 600241752. Its totient is φ = 199969000.

The previous prime is 400049581. The next prime is 400049609. The reversal of 400049582 is 285940004.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400049581) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18269 + ... + 33672.

It is an arithmetic number, because the mean of its divisors is an integer number (75030219).

Almost surely, 2^400049582 is an apocalyptic number.

400049582 is a deficient number, since it is larger than the sum of its proper divisors (200192170).

400049582 is a wasteful number, since it uses less digits than its factorization.

400049582 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55794.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 400049582 is about 20001.2395115903. The cubic root of 400049582 is about 736.8367420786.

Adding to 400049582 its reverse (285940004), we get a palindrome (685989586).

The spelling of 400049582 in words is "four hundred million, forty-nine thousand, five hundred eighty-two".