42226919 has 16 divisors (see below), whose sum is σ = 50568192. Its totient is φ = 34476288.

The previous prime is 42226907. The next prime is 42226939. The reversal of 42226919 is 91962224.

It is not a de Polignac number, because 42226919 - 2¹² = 42222823 is a prime.

It is a super-2 number, since 2×42226919² = 3566225376465122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42226939) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56462 + ... + 57204.

It is an arithmetic number, because the mean of its divisors is an integer number (3160512).

Almost surely, 2^42226919 is an apocalyptic number.

42226919 is a deficient number, since it is larger than the sum of its proper divisors (8341273).

42226919 is a wasteful number, since it uses less digits than its factorization.

42226919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1126.

The product of its digits is 15552, while the sum is 35.

The square root of 42226919 is about 6498.2242959135. The cubic root of 42226919 is about 348.2275535332.

The spelling of 42226919 in words is "forty-two million, two hundred twenty-six thousand, nine hundred nineteen".