207442 has 16 divisors (see below), whose sum is σ = 336960. Its totient is φ = 95472.

The previous prime is 207433. The next prime is 207443. The reversal of 207442 is 244702.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (207443) by changing a digit.

207442 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1963 + ... + 2065.

It is an arithmetic number, because the mean of its divisors is an integer number (21060).

2²⁰⁷⁴⁴² is an apocalyptic number.

207442 is a deficient number, since it is larger than the sum of its proper divisors (129518).

207442 is a wasteful number, since it uses less digits than its factorization.

207442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177.

The product of its (nonzero) digits is 448, while the sum is 19.

The square root of 207442 is about 455.4580112370. The cubic root of 207442 is about 59.1968908155.

It can be divided in two parts, 2074 and 42, that added together give a square (2116 = 46²).

The spelling of 207442 in words is "two hundred seven thousand, four hundred forty-two", and thus it is an iban number.