42471140 has 12 divisors (see below), whose sum is σ = 89189436. Its totient is φ = 16988448.

The previous prime is 42471139. The next prime is 42471157. The reversal of 42471140 is 4117424.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 19219456 + 23251684 = 4384^2 + 4822^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1061759 + ... + 1061798.

It is an arithmetic number, because the mean of its divisors is an integer number (7432453).

Almost surely, 2^42471140 is an apocalyptic number.

It is an amenable number.

42471140 is an abundant number, since it is smaller than the sum of its proper divisors (46718296).

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

42471140 is a wasteful number, since it uses less digits than its factorization.

42471140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2123566 (or 2123564 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 23.

The square root of 42471140 is about 6516.9885683496. The cubic root of 42471140 is about 348.8975925783.

Adding to 42471140 its reverse (4117424), we get a palindrome (46588564).

The spelling of 42471140 in words is "forty-two million, four hundred seventy-one thousand, one hundred forty".