42790148 has 6 divisors (see below), whose sum is σ = 74882766. Its totient is φ = 21395072.

The previous prime is 42790141. The next prime is 42790151. The reversal of 42790148 is 84109724.

It can be written as a sum of positive squares in only one way, i.e., 39337984 + 3452164 = 6272^2 + 1858^2 .

It is not an unprimeable number, because it can be changed into a prime (42790141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5348765 + ... + 5348772.

It is an arithmetic number, because the mean of its divisors is an integer number (12480461).

Almost surely, 2^42790148 is an apocalyptic number.

It is an amenable number.

42790148 is a deficient number, since it is larger than the sum of its proper divisors (32092618).

42790148 is a wasteful number, since it uses less digits than its factorization.

42790148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10697541 (or 10697539 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 42790148 is about 6541.4178891124. The cubic root of 42790148 is about 349.7689577218.

The spelling of 42790148 in words is "forty-two million, seven hundred ninety thousand, one hundred forty-eight".