42106616 has 8 divisors (see below), whose sum is σ = 78949920. Its totient is φ = 21053304.

The previous prime is 42106613. The next prime is 42106657. The reversal of 42106616 is 61660124.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×42106616² = 3545934221942912, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42106613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2631656 + ... + 2631671.

It is an arithmetic number, because the mean of its divisors is an integer number (9868740).

Almost surely, 2^42106616 is an apocalyptic number.

It is an amenable number.

42106616 is a deficient number, since it is larger than the sum of its proper divisors (36843304).

42106616 is a wasteful number, since it uses less digits than its factorization.

42106616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5263333 (or 5263329 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 42106616 is about 6488.9610878784. The cubic root of 42106616 is about 347.8965429901.

The spelling of 42106616 in words is "forty-two million, one hundred six thousand, six hundred sixteen".