42751377 has 12 divisors (see below), whose sum is σ = 61810164. Its totient is φ = 28474080.

The previous prime is 42751367. The next prime is 42751409. The reversal of 42751377 is 77315724.

It can be written as a sum of positive squares in 2 ways, for example, as 15752961 + 26998416 = 3969^2 + 5196^2 .

It is not a de Polignac number, because 42751377 - 2¹² = 42747281 is a prime.

It is a super-2 number, since 2×42751377² = 3655360470792258, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42751327) 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 11 ways as a sum of consecutive naturals, for example, 14227 + ... + 16967.

It is an arithmetic number, because the mean of its divisors is an integer number (5150847).

Almost surely, 2^42751377 is an apocalyptic number.

It is an amenable number.

42751377 is a deficient number, since it is larger than the sum of its proper divisors (19058787).

42751377 is a wasteful number, since it uses less digits than its factorization.

42751377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4480 (or 4477 counting only the distinct ones).

The product of its digits is 41160, while the sum is 36.

The square root of 42751377 is about 6538.4537162849. The cubic root of 42751377 is about 349.6632870579.

The spelling of 42751377 in words is "forty-two million, seven hundred fifty-one thousand, three hundred seventy-seven".