42779324 has 24 divisors (see below), whose sum is σ = 87550848. Its totient is φ = 17907120.

The previous prime is 42779323. The next prime is 42779329. The reversal of 42779324 is 42397724.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42779323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16562 + ... + 18969.

It is an arithmetic number, because the mean of its divisors is an integer number (3647952).

Almost surely, 2^42779324 is an apocalyptic number.

It is an amenable number.

42779324 is an abundant number, since it is smaller than the sum of its proper divisors (44771524).

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

42779324 is a wasteful number, since it uses less digits than its factorization.

42779324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35585 (or 35583 counting only the distinct ones).

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

The square root of 42779324 is about 6540.5904932200. The cubic root of 42779324 is about 349.7394632498.

The spelling of 42779324 in words is "forty-two million, seven hundred seventy-nine thousand, three hundred twenty-four".