42197070 has 32 divisors (see below), whose sum is σ = 103431168. Its totient is φ = 11012768.

The previous prime is 42197039. The next prime is 42197083. The reversal of 42197070 is 7079124.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13554 + ... + 16373.

It is an arithmetic number, because the mean of its divisors is an integer number (3232224).

Almost surely, 2^42197070 is an apocalyptic number.

42197070 is an abundant number, since it is smaller than the sum of its proper divisors (61234098).

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

42197070 is a wasteful number, since it uses less digits than its factorization.

42197070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29984.

The product of its (nonzero) digits is 3528, while the sum is 30.

The square root of 42197070 is about 6495.9271855525. The cubic root of 42197070 is about 348.1454834968.

The spelling of 42197070 in words is "forty-two million, one hundred ninety-seven thousand, seventy".