42946215 has 32 divisors (see below), whose sum is σ = 74692800. Its totient is φ = 20944896.

The previous prime is 42946181. The next prime is 42946219. The reversal of 42946215 is 51264924.

It is not a de Polignac number, because 42946215 - 2¹⁶ = 42880679 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42946219) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21061 + ... + 23009.

It is an arithmetic number, because the mean of its divisors is an integer number (2334150).

Almost surely, 2^42946215 is an apocalyptic number.

42946215 is a deficient number, since it is larger than the sum of its proper divisors (31746585).

42946215 is a wasteful number, since it uses less digits than its factorization.

42946215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2083.

The product of its digits is 17280, while the sum is 33.

The square root of 42946215 is about 6553.3361732785. The cubic root of 42946215 is about 350.1936751216.

The spelling of 42946215 in words is "forty-two million, nine hundred forty-six thousand, two hundred fifteen".