745570 has 16 divisors (see below), whose sum is σ = 1533888. Its totient is φ = 255600.

The previous prime is 745567. The next prime is 745573. The reversal of 745570 is 75547.

It is an interprime number because it is at equal distance from previous prime (745567) and next prime (745573).

It is a super-3 number, since 3×745570³ = 1243330332260079000, which contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (745573) 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, 5256 + ... + 5395.

It is an arithmetic number, because the mean of its divisors is an integer number (95868).

2⁷⁴⁵⁵⁷⁰ is an apocalyptic number.

745570 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

745570 is an abundant number, since it is smaller than the sum of its proper divisors (788318).

It is a weird number, because it is abundant, but not a pseudoperfect number.

745570 is a wasteful number, since it uses less digits than its factorization.

745570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10665.

The product of its (nonzero) digits is 4900, while the sum is 28.

The square root of 745570 is about 863.4639540826. The cubic root of 745570 is about 90.6767908485.

The spelling of 745570 in words is "seven hundred forty-five thousand, five hundred seventy".