73142746 has 8 divisors (see below), whose sum is σ = 109755360. Its totient is φ = 36557628.

The previous prime is 73142731. The next prime is 73142749. The reversal of 73142746 is 64724137.

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

It is a super-2 number, since 2×73142746² = 10699722584841032, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (73142749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2145 + ... + 12283.

It is an arithmetic number, because the mean of its divisors is an integer number (13719420).

Almost surely, 2^73142746 is an apocalyptic number.

73142746 is a deficient number, since it is larger than the sum of its proper divisors (36612614).

73142746 is a wasteful number, since it uses less digits than its factorization.

73142746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13748.

The product of its digits is 28224, while the sum is 34.

The square root of 73142746 is about 8552.3532434062. The cubic root of 73142746 is about 418.2061550338.

The spelling of 73142746 in words is "seventy-three million, one hundred forty-two thousand, seven hundred forty-six".