73142216 has 32 divisors (see below), whose sum is σ = 157463040. Its totient is φ = 31200768.

The previous prime is 73142213. The next prime is 73142219. The reversal of 73142216 is 61224137.

It is an interprime number because it is at equal distance from previous prime (73142213) and next prime (73142219).

It is a super-2 number, since 2×73142216² = 10699567522781312, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (73142213) 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, 9560 + ... + 15416.

It is an arithmetic number, because the mean of its divisors is an integer number (4920720).

Almost surely, 2^73142216 is an apocalyptic number.

It is an amenable number.

73142216 is an abundant number, since it is smaller than the sum of its proper divisors (84320824).

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

73142216 is a wasteful number, since it uses less digits than its factorization.

73142216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6093 (or 6089 counting only the distinct ones).

The product of its digits is 2016, while the sum is 26.

The square root of 73142216 is about 8552.3222577263. The cubic root of 73142216 is about 418.2051449095.

The spelling of 73142216 in words is "seventy-three million, one hundred forty-two thousand, two hundred sixteen".