42451436 has 6 divisors (see below), whose sum is σ = 74290020. Its totient is φ = 21225716.

The previous prime is 42451421. The next prime is 42451439. The reversal of 42451436 is 63415424.

42451436 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 42451399 and 42451408.

It is not an unprimeable number, because it can be changed into a prime (42451439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5306426 + ... + 5306433.

It is an arithmetic number, because the mean of its divisors is an integer number (12381670).

Almost surely, 2^42451436 is an apocalyptic number.

It is an amenable number.

42451436 is a deficient number, since it is larger than the sum of its proper divisors (31838584).

42451436 is a wasteful number, since it uses less digits than its factorization.

42451436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10612863 (or 10612861 counting only the distinct ones).

The product of its digits is 11520, while the sum is 29.

The square root of 42451436 is about 6515.4766517884. The cubic root of 42451436 is about 348.8436285486.

The spelling of 42451436 in words is "forty-two million, four hundred fifty-one thousand, four hundred thirty-six".