42420130 has 16 divisors (see below), whose sum is σ = 78420600. Its totient is φ = 16509312.

The previous prime is 42420109. The next prime is 42420181. The reversal of 42420130 is 3102424.

It can be written as a sum of positive squares in 4 ways, for example, as 38081241 + 4338889 = 6171^2 + 2083^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56955 + ... + 57694.

Almost surely, 2^42420130 is an apocalyptic number.

42420130 is a deficient number, since it is larger than the sum of its proper divisors (36000470).

42420130 is a wasteful number, since it uses less digits than its factorization.

42420130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114693.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 42420130 is about 6513.0737751080. The cubic root of 42420130 is about 348.7578553662.

Adding to 42420130 its reverse (3102424), we get a palindrome (45522554).

The spelling of 42420130 in words is "forty-two million, four hundred twenty thousand, one hundred thirty".