42777774 has 32 divisors (see below), whose sum is σ = 102375840. Its totient is φ = 13162176.

The previous prime is 42777767. The next prime is 42777793. The reversal of 42777774 is 47777724.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29767 + ... + 31170.

It is an arithmetic number, because the mean of its divisors is an integer number (3199245).

Almost surely, 2^42777774 is an apocalyptic number.

42777774 is an abundant number, since it is smaller than the sum of its proper divisors (59598066).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42777774 is a wasteful number, since it uses less digits than its factorization.

42777774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60961 (or 60955 counting only the distinct ones).

The product of its digits is 537824, while the sum is 45.

The square root of 42777774 is about 6540.4720013161. The cubic root of 42777774 is about 349.7352392255.

The spelling of 42777774 in words is "forty-two million, seven hundred seventy-seven thousand, seven hundred seventy-four".