742570 has 8 divisors (see below), whose sum is σ = 1336644. Its totient is φ = 297024.

The previous prime is 742559. The next prime is 742579. The reversal of 742570 is 75247.

742570 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 619369 + 123201 = 787^2 + 351^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (742579) by changing a digit.

742570 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37119 + ... + 37138.

2⁷⁴²⁵⁷⁰ is an apocalyptic number.

742570 is a deficient number, since it is larger than the sum of its proper divisors (594074).

742570 is a wasteful number, since it uses less digits than its factorization.

742570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74264.

The product of its (nonzero) digits is 1960, while the sum is 25.

The square root of 742570 is about 861.7250141431. The cubic root of 742570 is about 90.5550065972. Note that the first 3 decimals are identical.

The spelling of 742570 in words is "seven hundred forty-two thousand, five hundred seventy".