42603890 has 64 divisors (see below), whose sum is σ = 93450240. Its totient is φ = 13659840.

The previous prime is 42603881. The next prime is 42603907. The reversal of 42603890 is 9830624.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 136835 + ... + 137145.

It is an arithmetic number, because the mean of its divisors is an integer number (1460160).

Almost surely, 2^42603890 is an apocalyptic number.

42603890 is an abundant number, since it is smaller than the sum of its proper divisors (50846350).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42603890 is a wasteful number, since it uses less digits than its factorization.

42603890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 42603890 is about 6527.1655410293. The cubic root of 42603890 is about 349.2607253078.

The spelling of 42603890 in words is "forty-two million, six hundred three thousand, eight hundred ninety".