172737442 has 16 divisors (see below), whose sum is σ = 277657632. Its totient is φ = 80307520.

The previous prime is 172737431. The next prime is 172737451. The reversal of 172737442 is 244737271.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27784 + ... + 33427.

It is an arithmetic number, because the mean of its divisors is an integer number (17353602).

Almost surely, 2^172737442 is an apocalyptic number.

172737442 is a deficient number, since it is larger than the sum of its proper divisors (104920190).

172737442 is a wasteful number, since it uses less digits than its factorization.

172737442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61313.

The product of its digits is 65856, while the sum is 37.

The square root of 172737442 is about 13142.9616905780. The cubic root of 172737442 is about 556.9234369869.

The spelling of 172737442 in words is "one hundred seventy-two million, seven hundred thirty-seven thousand, four hundred forty-two".