40570 has 8 divisors (see below), whose sum is σ = 73044. Its totient is φ = 16224.
The previous prime is 40559. The next prime is 40577. The reversal of 40570 is 7504.
It can be written as a sum of positive squares in 2 ways, for example, as 40401 + 169 = 201^2 + 13^2 .
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 (40577) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2019 + ... + 2038.
240570 is an apocalyptic number.
40570 is a deficient number, since it is larger than the sum of its proper divisors (32474).
40570 is a wasteful number, since it uses less digits than its factorization.
40570 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4064.
The product of its (nonzero) digits is 140, while the sum is 16.
The square root of 40570 is about 201.4199592890. The cubic root of 40570 is about 34.3612010731.
The spelling of 40570 in words is "forty thousand, five hundred seventy".
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