42742744 has 32 divisors (see below), whose sum is σ = 87920640. Its totient is φ = 19319200.

The previous prime is 42742703. The next prime is 42742747. The reversal of 42742744 is 44724724.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42742747) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15537 + ... + 18079.

It is an arithmetic number, because the mean of its divisors is an integer number (2747520).

Almost surely, 2^42742744 is an apocalyptic number.

42742744 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

42742744 is an abundant number, since it is smaller than the sum of its proper divisors (45177896).

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

42742744 is a wasteful number, since it uses less digits than its factorization.

42742744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2751 (or 2747 counting only the distinct ones).

The product of its digits is 50176, while the sum is 34.

The square root of 42742744 is about 6537.7935115756. The cubic root of 42742744 is about 349.6397490530.

The spelling of 42742744 in words is "forty-two million, seven hundred forty-two thousand, seven hundred forty-four".