42629140 has 12 divisors (see below), whose sum is σ = 89521236. Its totient is φ = 17051648.

The previous prime is 42629021. The next prime is 42629173. The reversal of 42629140 is 4192624.

It can be written as a sum of positive squares in 2 ways, for example, as 13749264 + 28879876 = 3708^2 + 5374^2 .

It is a junction number, because it is equal to n+sod(n) for n = 42629099 and 42629108.

It is a congruent number.

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, 1065709 + ... + 1065748.

It is an arithmetic number, because the mean of its divisors is an integer number (7460103).

Almost surely, 2^42629140 is an apocalyptic number.

It is an amenable number.

42629140 is an abundant number, since it is smaller than the sum of its proper divisors (46892096).

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

42629140 is a wasteful number, since it uses less digits than its factorization.

42629140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2131466 (or 2131464 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 42629140 is about 6529.0994784886. The cubic root of 42629140 is about 349.3297103361.

The spelling of 42629140 in words is "forty-two million, six hundred twenty-nine thousand, one hundred forty".