42618742 has 8 divisors (see below), whose sum is σ = 64525896. Its totient is φ = 21110112.

The previous prime is 42618739. The next prime is 42618743. The reversal of 42618742 is 24781624.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 42618698 and 42618707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42618743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99363 + ... + 99790.

It is an arithmetic number, because the mean of its divisors is an integer number (8065737).

Almost surely, 2^42618742 is an apocalyptic number.

42618742 is a deficient number, since it is larger than the sum of its proper divisors (21907154).

42618742 is a wasteful number, since it uses less digits than its factorization.

42618742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199262.

The product of its digits is 21504, while the sum is 34.

The square root of 42618742 is about 6528.3031485984. The cubic root of 42618742 is about 349.3013054648.

The spelling of 42618742 in words is "forty-two million, six hundred eighteen thousand, seven hundred forty-two".