42737745 has 32 divisors (see below), whose sum is σ = 76222080. Its totient is φ = 20321280.

The previous prime is 42737731. The next prime is 42737753. The reversal of 42737745 is 54773724.

It is not a de Polignac number, because 42737745 - 2⁴ = 42737729 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 435 + ... + 9255.

It is an arithmetic number, because the mean of its divisors is an integer number (2381940).

Almost surely, 2^42737745 is an apocalyptic number.

It is an amenable number.

42737745 is a deficient number, since it is larger than the sum of its proper divisors (33484335).

42737745 is a wasteful number, since it uses less digits than its factorization.

42737745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8865.

The product of its digits is 164640, while the sum is 39.

The square root of 42737745 is about 6537.4111848652. The cubic root of 42737745 is about 349.6261177549.

The spelling of 42737745 in words is "forty-two million, seven hundred thirty-seven thousand, seven hundred forty-five".