1375396828 has 12 divisors (see below), whose sum is σ = 2592094120. Its totient is φ = 634798512.

The previous prime is 1375396823. The next prime is 1375396831. The reversal of 1375396828 is 8286935731.

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (52), and also a Moran number because the ratio is a prime number: 26449939 = 1375396828 / (1 + 3 + 7 + 5 + 3 + 9 + 6 + 8 + 2 + 8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1375396823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13224918 + ... + 13225021.

Almost surely, 2^1375396828 is an apocalyptic number.

It is an amenable number.

1375396828 is a deficient number, since it is larger than the sum of its proper divisors (1216697292).

1375396828 is a wasteful number, since it uses less digits than its factorization.

1375396828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26449956 (or 26449954 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 52.

The square root of 1375396828 is about 37086.3428771293. The cubic root of 1375396828 is about 1112.0970092464.

The spelling of 1375396828 in words is "one billion, three hundred seventy-five million, three hundred ninety-six thousand, eight hundred twenty-eight".