146216442 has 16 divisors (see below), whose sum is σ = 295448832. Its totient is φ = 48236160.

The previous prime is 146216437. The next prime is 146216449. The reversal of 146216442 is 244612641.

It is a happy number.

It is a super-2 number, since 2×146216442² = 42758495822278728, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (146216449) 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, 125034 + ... + 126197.

It is an arithmetic number, because the mean of its divisors is an integer number (18465552).

Almost surely, 2^146216442 is an apocalyptic number.

146216442 is an abundant number, since it is smaller than the sum of its proper divisors (149232390).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

146216442 is a wasteful number, since it uses less digits than its factorization.

146216442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251333.

The product of its digits is 9216, while the sum is 30.

The square root of 146216442 is about 12091.9990903076. Note that the first 3 decimals coincide. The cubic root of 146216442 is about 526.8238209822.

The spelling of 146216442 in words is "one hundred forty-six million, two hundred sixteen thousand, four hundred forty-two".