42220953 has 8 divisors (see below), whose sum is σ = 62549600. Its totient is φ = 28147284.

The previous prime is 42220951. The next prime is 42220957. The reversal of 42220953 is 35902224.

It is not a de Polignac number, because 42220953 - 2¹ = 42220951 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 1563739 = 42220953 / (4 + 2 + 2 + 2 + 0 + 9 + 5 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42220951) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 781843 + ... + 781896.

It is an arithmetic number, because the mean of its divisors is an integer number (7818700).

Almost surely, 2^42220953 is an apocalyptic number.

It is an amenable number.

42220953 is a deficient number, since it is larger than the sum of its proper divisors (20328647).

42220953 is a wasteful number, since it uses less digits than its factorization.

42220953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1563748 (or 1563742 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 42220953 is about 6497.7652312160. The cubic root of 42220953 is about 348.2111530673.

The spelling of 42220953 in words is "forty-two million, two hundred twenty thousand, nine hundred fifty-three".