40842347 has 24 divisors (see below), whose sum is σ = 53432736. Its totient is φ = 30394368.

The previous prime is 40842341. The next prime is 40842349. The reversal of 40842347 is 74324804.

It is not a de Polignac number, because 40842347 - 2¹² = 40838251 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40842341) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25523 + ... + 27075.

It is an arithmetic number, because the mean of its divisors is an integer number (2226364).

Almost surely, 2^40842347 is an apocalyptic number.

40842347 is a deficient number, since it is larger than the sum of its proper divisors (12590389).

40842347 is a wasteful number, since it uses less digits than its factorization.

40842347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1607 (or 1590 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 32.

The square root of 40842347 is about 6390.8017493895. The cubic root of 40842347 is about 344.3791874024.

The spelling of 40842347 in words is "forty million, eight hundred forty-two thousand, three hundred forty-seven".