42307477 has 4 divisors (see below), whose sum is σ = 42328096. Its totient is φ = 42286860.

The previous prime is 42307459. The next prime is 42307487. The reversal of 42307477 is 77470324.

It is a happy number.

42307477 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42307477 - 2¹⁵ = 42274709 is a prime.

It is a super-2 number, since 2×42307477² = 3579845220211058, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42307457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6843 + ... + 11464.

It is an arithmetic number, because the mean of its divisors is an integer number (10582024).

Almost surely, 2^42307477 is an apocalyptic number.

It is an amenable number.

42307477 is a deficient number, since it is larger than the sum of its proper divisors (20619).

42307477 is a wasteful number, since it uses less digits than its factorization.

42307477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20618.

The product of its (nonzero) digits is 32928, while the sum is 34.

The square root of 42307477 is about 6504.4198050249. The cubic root of 42307477 is about 348.4488554565.

The spelling of 42307477 in words is "forty-two million, three hundred seven thousand, four hundred seventy-seven".