42312737 has 16 divisors (see below), whose sum is σ = 45176832. Its totient is φ = 39567360.

The previous prime is 42312733. The next prime is 42312749. The reversal of 42312737 is 73721324.

It is a cyclic number.

It is not a de Polignac number, because 42312737 - 2² = 42312733 is a prime.

It is a Duffinian number.

42312737 is a modest number, since divided by 12737 gives 423 as remainder.

It is not an unprimeable number, because it can be changed into a prime (42312733) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 164513 + ... + 164769.

It is an arithmetic number, because the mean of its divisors is an integer number (2823552).

Almost surely, 2^42312737 is an apocalyptic number.

42312737 is a gapful number since it is divisible by the number (47) formed by its first and last digit.

It is an amenable number.

42312737 is a deficient number, since it is larger than the sum of its proper divisors (2864095).

42312737 is a wasteful number, since it uses less digits than its factorization.

42312737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448.

The product of its digits is 7056, while the sum is 29.

The square root of 42312737 is about 6504.8241329032. The cubic root of 42312737 is about 348.4632954969.

The spelling of 42312737 in words is "forty-two million, three hundred twelve thousand, seven hundred thirty-seven".