1375428806 has 8 divisors (see below), whose sum is σ = 2063487504. Its totient is φ = 687599640.

The previous prime is 1375428781. The next prime is 1375428833. The reversal of 1375428806 is 6088245731.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41525 + ... + 66896.

It is an arithmetic number, because the mean of its divisors is an integer number (257935938).

Almost surely, 2^1375428806 is an apocalyptic number.

1375428806 is a deficient number, since it is larger than the sum of its proper divisors (688058698).

1375428806 is a wasteful number, since it uses less digits than its factorization.

1375428806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114766.

The product of its (nonzero) digits is 322560, while the sum is 44.

The square root of 1375428806 is about 37086.7740036795. The cubic root of 1375428806 is about 1112.1056279378.

The spelling of 1375428806 in words is "one billion, three hundred seventy-five million, four hundred twenty-eight thousand, eight hundred six".