42606776 has 8 divisors (see below), whose sum is σ = 79887720. Its totient is φ = 21303384.

The previous prime is 42606761. The next prime is 42606779. The reversal of 42606776 is 67760624.

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 2×42606776² = 3630674722228352, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42606779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2662916 + ... + 2662931.

It is an arithmetic number, because the mean of its divisors is an integer number (9985965).

Almost surely, 2^42606776 is an apocalyptic number.

It is an amenable number.

42606776 is a deficient number, since it is larger than the sum of its proper divisors (37280944).

42606776 is a wasteful number, since it uses less digits than its factorization.

42606776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5325853 (or 5325849 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 38.

The square root of 42606776 is about 6527.3866133392. The cubic root of 42606776 is about 349.2686114710.

The spelling of 42606776 in words is "forty-two million, six hundred six thousand, seven hundred seventy-six".