42391034 has 32 divisors (see below), whose sum is σ = 75542016. Its totient is φ = 17463600.

The previous prime is 42391003. The next prime is 42391057. The reversal of 42391034 is 43019324.

It is a junction number, because it is equal to n+sod(n) for n = 42390994 and 42391012.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39809 + ... + 40859.

It is an arithmetic number, because the mean of its divisors is an integer number (2360688).

Almost surely, 2^42391034 is an apocalyptic number.

42391034 is a deficient number, since it is larger than the sum of its proper divisors (33150982).

42391034 is a wasteful number, since it uses less digits than its factorization.

42391034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1170.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 42391034 is about 6510.8397307874. The cubic root of 42391034 is about 348.6780993675.

The spelling of 42391034 in words is "forty-two million, three hundred ninety-one thousand, thirty-four".