42631436 has 24 divisors (see below), whose sum is σ = 76193040. Its totient is φ = 20865600.

The previous prime is 42631423. The next prime is 42631441. The reversal of 42631436 is 63413624.

It is a junction number, because it is equal to n+sod(n) for n = 42631399 and 42631408.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92246 + ... + 92706.

It is an arithmetic number, because the mean of its divisors is an integer number (3174710).

Almost surely, 2^42631436 is an apocalyptic number.

It is an amenable number.

42631436 is a deficient number, since it is larger than the sum of its proper divisors (33561604).

42631436 is a wasteful number, since it uses less digits than its factorization.

42631436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 905 (or 903 counting only the distinct ones).

The product of its digits is 10368, while the sum is 29.

The square root of 42631436 is about 6529.2753043504. The cubic root of 42631436 is about 349.3359818412.

The spelling of 42631436 in words is "forty-two million, six hundred thirty-one thousand, four hundred thirty-six".