1375609368 has 96 divisors (see below), whose sum is σ = 4029338880. Its totient is φ = 383366400.

The previous prime is 1375609363. The next prime is 1375609387. The reversal of 1375609368 is 8639065731.

It is a happy number.

It is a super-2 number, since 2×1375609368² = 3784602266658718848, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1375609363) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 279973 + ... + 284843.

It is an arithmetic number, because the mean of its divisors is an integer number (41972280).

Almost surely, 2^1375609368 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1375609368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2014669440).

1375609368 is an abundant number, since it is smaller than the sum of its proper divisors (2653729512).

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

1375609368 is a wasteful number, since it uses less digits than its factorization.

1375609368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4969 (or 4924 counting only the distinct ones).

The product of its (nonzero) digits is 816480, while the sum is 48.

The square root of 1375609368 is about 37089.2082417514. The cubic root of 1375609368 is about 1112.1542903935.

The spelling of 1375609368 in words is "one billion, three hundred seventy-five million, six hundred nine thousand, three hundred sixty-eight".