42470140 has 24 divisors (see below), whose sum is σ = 91086912. Its totient is φ = 16626240.

The previous prime is 42470107. The next prime is 42470143. The reversal of 42470140 is 4107424.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42470143) 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 in 7 ways as a sum of consecutive naturals, for example, 21651 + ... + 23530.

It is an arithmetic number, because the mean of its divisors is an integer number (3795288).

Almost surely, 2^42470140 is an apocalyptic number.

It is an amenable number.

42470140 is an abundant number, since it is smaller than the sum of its proper divisors (48616772).

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

42470140 is a wasteful number, since it uses less digits than its factorization.

42470140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45237 (or 45235 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 22.

The square root of 42470140 is about 6516.9118453452. The cubic root of 42470140 is about 348.8948542456.

Adding to 42470140 its reverse (4107424), we get a palindrome (46577564).

The spelling of 42470140 in words is "forty-two million, four hundred seventy thousand, one hundred forty".