42402777 has 32 divisors (see below), whose sum is σ = 64219392. Its totient is φ = 24735744.

The previous prime is 42402719. The next prime is 42402797. The reversal of 42402777 is 77720424.

It is not a de Polignac number, because 42402777 - 2⁷ = 42402649 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42402797) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42913 + ... + 43889.

It is an arithmetic number, because the mean of its divisors is an integer number (2006856).

Almost surely, 2^42402777 is an apocalyptic number.

It is an amenable number.

42402777 is a deficient number, since it is larger than the sum of its proper divisors (21816615).

42402777 is a wasteful number, since it uses less digits than its factorization.

42402777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1057.

The product of its (nonzero) digits is 21952, while the sum is 33.

The square root of 42402777 is about 6511.7414721409. The cubic root of 42402777 is about 348.7102928804.

The spelling of 42402777 in words is "forty-two million, four hundred two thousand, seven hundred seventy-seven".