916666442 has 16 divisors (see below), whose sum is σ = 1402555392. Its totient is φ = 449235360.

The previous prime is 916666409. The next prime is 916666483. The reversal of 916666442 is 244666619.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 916666393 and 916666402.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 659 + ... + 42822.

It is an arithmetic number, because the mean of its divisors is an integer number (87659712).

Almost surely, 2^916666442 is an apocalyptic number.

916666442 is a deficient number, since it is larger than the sum of its proper divisors (485888950).

916666442 is a wasteful number, since it uses less digits than its factorization.

916666442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43693.

The product of its digits is 373248, while the sum is 44.

The square root of 916666442 is about 30276.4998307268. The cubic root of 916666442 is about 971.4127011804.

The spelling of 916666442 in words is "nine hundred sixteen million, six hundred sixty-six thousand, four hundred forty-two".