42291368 has 16 divisors (see below), whose sum is σ = 90624480. Its totient is φ = 18124848.

The previous prime is 42291341. The next prime is 42291371. The reversal of 42291368 is 86319224.

It is a super-2 number, since 2×42291368² = 3577119614622848, which contains 22 as substring.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 377546 + ... + 377657.

It is an arithmetic number, because the mean of its divisors is an integer number (5664030).

Almost surely, 2^42291368 is an apocalyptic number.

It is an amenable number.

42291368 is an abundant number, since it is smaller than the sum of its proper divisors (48333112).

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

42291368 is a wasteful number, since it uses less digits than its factorization.

42291368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 755216 (or 755212 counting only the distinct ones).

The product of its digits is 20736, while the sum is 35.

The square root of 42291368 is about 6503.1813752962. The cubic root of 42291368 is about 348.4046246996.

The spelling of 42291368 in words is "forty-two million, two hundred ninety-one thousand, three hundred sixty-eight".