73542842 has 4 divisors (see below), whose sum is σ = 110314266. Its totient is φ = 36771420.

The previous prime is 73542841. The next prime is 73542871. The reversal of 73542842 is 24824537.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24824537 = 137 ⋅181201.

It can be written as a sum of positive squares in only one way, i.e., 41744521 + 31798321 = 6461^2 + 5639^2 .

It is not an unprimeable number, because it can be changed into a prime (73542841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18385709 + ... + 18385712.

Almost surely, 2^73542842 is an apocalyptic number.

73542842 is a deficient number, since it is larger than the sum of its proper divisors (36771424).

73542842 is a wasteful number, since it uses less digits than its factorization.

73542842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36771423.

The product of its digits is 53760, while the sum is 35.

The square root of 73542842 is about 8575.7123319291. The cubic root of 73542842 is about 418.9673079568.

The spelling of 73542842 in words is "seventy-three million, five hundred forty-two thousand, eight hundred forty-two".