42792130 has 8 divisors (see below), whose sum is σ = 77025852. Its totient is φ = 17116848.

The previous prime is 42792107. The next prime is 42792133. The reversal of 42792130 is 3129724.

It can be written as a sum of positive squares in 2 ways, for example, as 39476089 + 3316041 = 6283^2 + 1821^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (42792133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2139597 + ... + 2139616.

Almost surely, 2^42792130 is an apocalyptic number.

42792130 is a deficient number, since it is larger than the sum of its proper divisors (34233722).

42792130 is a wasteful number, since it uses less digits than its factorization.

42792130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4279220.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 42792130 is about 6541.5693835654. The cubic root of 42792130 is about 349.7743579631.

The spelling of 42792130 in words is "forty-two million, seven hundred ninety-two thousand, one hundred thirty".