42145304 has 8 divisors (see below), whose sum is σ = 79022460. Its totient is φ = 21072648.

The previous prime is 42145297. The next prime is 42145319. The reversal of 42145304 is 40354124.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-3 number, since 3×42145304³ (a number of 24 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 42145304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2634074 + ... + 2634089.

Almost surely, 2^42145304 is an apocalyptic number.

It is an amenable number.

42145304 is a deficient number, since it is larger than the sum of its proper divisors (36877156).

42145304 is a wasteful number, since it uses less digits than its factorization.

42145304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5268169 (or 5268165 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 42145304 is about 6491.9414661563. The cubic root of 42145304 is about 348.0030607033.

Adding to 42145304 its reverse (40354124), we get a palindrome (82499428).

The spelling of 42145304 in words is "forty-two million, one hundred forty-five thousand, three hundred four".