42302340 has 36 divisors (see below), whose sum is σ = 128317644. Its totient is φ = 11280576.

The previous prime is 42302333. The next prime is 42302357. The reversal of 42302340 is 4320324.

It can be written as a sum of positive squares in 2 ways, for example, as 15116544 + 27185796 = 3888^2 + 5214^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 117327 + ... + 117686.

It is an arithmetic number, because the mean of its divisors is an integer number (3564379).

Almost surely, 2^42302340 is an apocalyptic number.

It is an amenable number.

42302340 is an abundant number, since it is smaller than the sum of its proper divisors (86015304).

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

42302340 is a wasteful number, since it uses less digits than its factorization.

42302340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235028 (or 235023 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 42302340 is about 6504.0249077014. The cubic root of 42302340 is about 348.4347519272.

Adding to 42302340 its reverse (4320324), we get a palindrome (46622664).

It can be divided in two parts, 42 and 302340, that multiplied together give a triangular number (12698280 = T₅₀₃₉).

The spelling of 42302340 in words is "forty-two million, three hundred two thousand, three hundred forty".