408103144 has 8 divisors (see below), whose sum is σ = 765193410. Its totient is φ = 204051568.

The previous prime is 408103141. The next prime is 408103151. The reversal of 408103144 is 441301804.

It can be written as a sum of positive squares in only one way, i.e., 251603044 + 156500100 = 15862^2 + 12510^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×408103144² = 333096352285369472, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (408103141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25506439 + ... + 25506454.

Almost surely, 2^408103144 is an apocalyptic number.

It is an amenable number.

408103144 is a deficient number, since it is larger than the sum of its proper divisors (357090266).

408103144 is a wasteful number, since it uses less digits than its factorization.

408103144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51012899 (or 51012895 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 408103144 is about 20201.5629098345. The cubic root of 408103144 is about 741.7484489598.

Adding to 408103144 its reverse (441301804), we get a palindrome (849404948).

The spelling of 408103144 in words is "four hundred eight million, one hundred three thousand, one hundred forty-four".