1375816464 has 135 divisors (see below), whose sum is σ = 4247345557. Its totient is φ = 415430400.

The previous prime is 1375816411. The next prime is 1375816469. The reversal of 1375816464 is 4646185731.

The square root of 1375816464 is 37092.

It is a perfect power (a square), and thus also a powerful number.

1375816464 is a `hidden beast` number, since 1 + 3 + 7 + 581 + 6 + 4 + 64 = 666.

It can be written as a sum of positive squares in only one way, i.e., 929762064 + 446054400 = 30492^2 + 21120^2 .

It is a super-2 number, since 2×1375816464² = 3785741885226926592, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1375816469) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 4896004 + ... + 4896284.

Almost surely, 2^1375816464 is an apocalyptic number.

1375816464 is the 37092-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1375816464

1375816464 is an abundant number, since it is smaller than the sum of its proper divisors (2871529093).

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

1375816464 is a wasteful number, since it uses less digits than its factorization.

1375816464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 598 (or 297 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The cubic root of 1375816464 is about 1112.2100986661.

The spelling of 1375816464 in words is "one billion, three hundred seventy-five million, eight hundred sixteen thousand, four hundred sixty-four".