623042 has 16 divisors (see below), whose sum is σ = 1078272. Its totient is φ = 264480.

The previous prime is 623041. The next prime is 623057. The reversal of 623042 is 240326.

It is a self number, because there is not a number n which added to its sum of digits gives 623042.

It is not an unprimeable number, because it can be changed into a prime (623041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2558 + ... + 2790.

It is an arithmetic number, because the mean of its divisors is an integer number (67392).

2⁶²³⁰⁴² is an apocalyptic number.

623042 is a deficient number, since it is larger than the sum of its proper divisors (455230).

623042 is a wasteful number, since it uses less digits than its factorization.

623042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 623042 is about 789.3300957141. The cubic root of 623042 is about 85.4094203913.

Adding to 623042 its reverse (240326), we get a palindrome (863368).

The spelling of 623042 in words is "six hundred twenty-three thousand, forty-two".