1675372720 has 120 divisors (see below), whose sum is σ = 4551565824. Its totient is φ = 571834368.

The previous prime is 1675372667. The next prime is 1675372733. The reversal of 1675372720 is 272735761.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1006609 + ... + 1008271.

Almost surely, 2^1675372720 is an apocalyptic number.

1675372720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1675372720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2275782912).

1675372720 is an abundant number, since it is smaller than the sum of its proper divisors (2876193104).

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

1675372720 is a wasteful number, since it uses less digits than its factorization.

1675372720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1947 (or 1934 counting only the distinct ones).

The product of its (nonzero) digits is 123480, while the sum is 40.

The square root of 1675372720 is about 40931.3171056100. The cubic root of 1675372720 is about 1187.6919507991.

The spelling of 1675372720 in words is "one billion, six hundred seventy-five million, three hundred seventy-two thousand, seven hundred twenty".