42391292 has 24 divisors (see below), whose sum is σ = 76363056. Its totient is φ = 20579328.

The previous prime is 42391273. The next prime is 42391303. The reversal of 42391292 is 29219324.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32558 + ... + 33834.

It is an arithmetic number, because the mean of its divisors is an integer number (3181794).

Almost surely, 2^42391292 is an apocalyptic number.

It is an amenable number.

42391292 is a deficient number, since it is larger than the sum of its proper divisors (33971764).

42391292 is a wasteful number, since it uses less digits than its factorization.

42391292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1517 (or 1515 counting only the distinct ones).

The product of its digits is 7776, while the sum is 32.

The square root of 42391292 is about 6510.8595438698. The cubic root of 42391292 is about 348.6788067401.

The spelling of 42391292 in words is "forty-two million, three hundred ninety-one thousand, two hundred ninety-two".