42470215 has 16 divisors (see below), whose sum is σ = 51876000. Its totient is φ = 33374592.

The previous prime is 42470201. The next prime is 42470231. The reversal of 42470215 is 51207424.

It is a cyclic number.

It is not a de Polignac number, because 42470215 - 2⁹ = 42469703 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42470215.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80944 + ... + 81466.

It is an arithmetic number, because the mean of its divisors is an integer number (3242250).

Almost surely, 2^42470215 is an apocalyptic number.

42470215 is a deficient number, since it is larger than the sum of its proper divisors (9405785).

42470215 is a wasteful number, since it uses less digits than its factorization.

42470215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 786.

The product of its (nonzero) digits is 2240, while the sum is 25.

The square root of 42470215 is about 6516.9175996018. The cubic root of 42470215 is about 348.8950596221.

Adding to 42470215 its reverse (51207424), we get a palindrome (93677639).

The spelling of 42470215 in words is "forty-two million, four hundred seventy thousand, two hundred fifteen".