42246145 has 8 divisors (see below), whose sum is σ = 50736960. Its totient is φ = 33769200.

The previous prime is 42246133. The next prime is 42246151. The reversal of 42246145 is 54164224.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42246145 - 2¹⁵ = 42213377 is a prime.

It is a super-2 number, since 2×42246145² = 3569473534722050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5220 + ... + 10570.

It is an arithmetic number, because the mean of its divisors is an integer number (6342120).

It is a Proth number, since it is equal to 5157 ⋅ 2¹³ + 1 and 5157 < 2¹³.

Almost surely, 2^42246145 is an apocalyptic number.

It is an amenable number.

42246145 is a deficient number, since it is larger than the sum of its proper divisors (8490815).

42246145 is a wasteful number, since it uses less digits than its factorization.

42246145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6935.

The product of its digits is 7680, while the sum is 28.

The square root of 42246145 is about 6499.7034547739. The cubic root of 42246145 is about 348.2803950797.

The spelling of 42246145 in words is "forty-two million, two hundred forty-six thousand, one hundred forty-five".