1358040128 has 14 divisors (see below), whose sum is σ = 2694861006. Its totient is φ = 679020032.

The previous prime is 1358040127. The next prime is 1358040149. The reversal of 1358040128 is 8210408531.

It can be written as a sum of positive squares in only one way, i.e., 1354828864 + 3211264 = 36808^2 + 1792^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 1358040094 and 1358040103.

It is not an unprimeable number, because it can be changed into a prime (1358040127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10609625 + ... + 10609752.

Almost surely, 2^1358040128 is an apocalyptic number.

It is an amenable number.

1358040128 is a deficient number, since it is larger than the sum of its proper divisors (1336820878).

1358040128 is an equidigital number, since it uses as much as digits as its factorization.

1358040128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21219389 (or 21219379 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 1358040128 is about 36851.5960034298. The cubic root of 1358040128 is about 1107.3991885777.

Adding to 1358040128 its reverse (8210408531), we get a palindrome (9568448659).

The spelling of 1358040128 in words is "one billion, three hundred fifty-eight million, forty thousand, one hundred twenty-eight".