612544042 has 16 divisors (see below), whose sum is σ = 1005776352. Its totient is φ = 277475920.

The previous prime is 612544019. The next prime is 612544043. The reversal of 612544042 is 240445216.

It is a self number, because there is not a number n which added to its sum of digits gives 612544042.

It is not an unprimeable number, because it can be changed into a prime (612544043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41068 + ... + 53959.

It is an arithmetic number, because the mean of its divisors is an integer number (62861022).

Almost surely, 2^612544042 is an apocalyptic number.

612544042 is a deficient number, since it is larger than the sum of its proper divisors (393232310).

612544042 is a wasteful number, since it uses less digits than its factorization.

612544042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95333.

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 612544042 is about 24749.6271083021. The cubic root of 612544042 is about 849.2699808178.

Adding to 612544042 its reverse (240445216), we get a palindrome (852989258).

The spelling of 612544042 in words is "six hundred twelve million, five hundred forty-four thousand, forty-two".