42154004 has 12 divisors (see below), whose sum is σ = 73830624. Its totient is φ = 21059544.

The previous prime is 42154003. The next prime is 42154019. The reversal of 42154004 is 40045124.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42154001) 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, 2147 + ... + 9429.

It is an arithmetic number, because the mean of its divisors is an integer number (6152552).

Almost surely, 2^42154004 is an apocalyptic number.

It is an amenable number.

42154004 is a deficient number, since it is larger than the sum of its proper divisors (31676620).

42154004 is a wasteful number, since it uses less digits than its factorization.

42154004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8734 (or 8732 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 42154004 is about 6492.6114930743. The cubic root of 42154004 is about 348.0270049947.

Adding to 42154004 its reverse (40045124), we get a palindrome (82199128).

The spelling of 42154004 in words is "forty-two million, one hundred fifty-four thousand, four".