1375894722 has 16 divisors (see below), whose sum is σ = 2752674912. Its totient is φ = 458484000.

The previous prime is 1375894721. The next prime is 1375894727. The reversal of 1375894722 is 2274985731.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1375894721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15763 + ... + 54774.

It is an arithmetic number, because the mean of its divisors is an integer number (172042182).

Almost surely, 2^1375894722 is an apocalyptic number.

1375894722 is an abundant number, since it is smaller than the sum of its proper divisors (1376780190).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1375894722 is a wasteful number, since it uses less digits than its factorization.

1375894722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73793.

The product of its digits is 846720, while the sum is 48.

The square root of 1375894722 is about 37093.0549025016. The cubic root of 1375894722 is about 1112.2311861900.

It can be divided in two parts, 137589 and 4722, that added together give a triangular number (142311 = T₅₃₃).

The spelling of 1375894722 in words is "one billion, three hundred seventy-five million, eight hundred ninety-four thousand, seven hundred twenty-two".