42744369 has 8 divisors (see below), whose sum is σ = 57205440. Its totient is φ = 28389776.

The previous prime is 42744367. The next prime is 42744389. The reversal of 42744369 is 96344724.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42744369 - 2¹ = 42744367 is a prime.

It is a super-2 number, since 2×42744369² = 3654162162416322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42744367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25677 + ... + 27290.

It is an arithmetic number, because the mean of its divisors is an integer number (7150680).

Almost surely, 2^42744369 is an apocalyptic number.

It is an amenable number.

42744369 is a deficient number, since it is larger than the sum of its proper divisors (14461071).

42744369 is a wasteful number, since it uses less digits than its factorization.

42744369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53239.

The product of its digits is 145152, while the sum is 39.

The square root of 42744369 is about 6537.9177877976. The cubic root of 42744369 is about 349.6441798822.

It can be divided in two parts, 42744 and 369, that multiplied together give a triangular number (15772536 = T₅₆₁₆).

The spelling of 42744369 in words is "forty-two million, seven hundred forty-four thousand, three hundred sixty-nine".