400145662 has 48 divisors (see below), whose sum is σ = 738391680. Its totient is φ = 161708400.

The previous prime is 400145633. The next prime is 400145663. The reversal of 400145662 is 266541004.

It is a self number, because there is not a number n which added to its sum of digits gives 400145662.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400145663) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 578737 + ... + 579427.

It is an arithmetic number, because the mean of its divisors is an integer number (15383160).

Almost surely, 2^400145662 is an apocalyptic number.

400145662 is a deficient number, since it is larger than the sum of its proper divisors (338246018).

400145662 is a wasteful number, since it uses less digits than its factorization.

400145662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1037 (or 1030 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 400145662 is about 20003.6412185382. The cubic root of 400145662 is about 736.8957261066.

Adding to 400145662 its reverse (266541004), we get a palindrome (666686666).

The spelling of 400145662 in words is "four hundred million, one hundred forty-five thousand, six hundred sixty-two".