42408472 has 16 divisors (see below), whose sum is σ = 84193560. Its totient is φ = 19956864.

The previous prime is 42408467. The next prime is 42408479. The reversal of 42408472 is 27480424.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42408479) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 155778 + ... + 156049.

Almost surely, 2^42408472 is an apocalyptic number.

It is an amenable number.

42408472 is a deficient number, since it is larger than the sum of its proper divisors (41785088).

42408472 is a wasteful number, since it uses less digits than its factorization.

42408472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311850 (or 311846 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 31.

The square root of 42408472 is about 6512.1787444756. The cubic root of 42408472 is about 348.7259036207.

Adding to 42408472 its reverse (27480424), we get a palindrome (69888896).

The spelling of 42408472 in words is "forty-two million, four hundred eight thousand, four hundred seventy-two".