1375069720 has 32 divisors (see below), whose sum is σ = 3228426720. Its totient is φ = 526113280.

The previous prime is 1375069693. The next prime is 1375069723. The reversal of 1375069720 is 279605731.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1375069723) 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, 746401 + ... + 748240.

It is an arithmetic number, because the mean of its divisors is an integer number (100888335).

Almost surely, 2^1375069720 is an apocalyptic number.

1375069720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1375069720 is an abundant number, since it is smaller than the sum of its proper divisors (1853357000).

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

1375069720 is a wasteful number, since it uses less digits than its factorization.

1375069720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1494675 (or 1494671 counting only the distinct ones).

The product of its (nonzero) digits is 79380, while the sum is 40.

The square root of 1375069720 is about 37081.9325278497. The cubic root of 1375069720 is about 1112.0088396206.

The spelling of 1375069720 in words is "one billion, three hundred seventy-five million, sixty-nine thousand, seven hundred twenty".