42730119 has 8 divisors (see below), whose sum is σ = 63303920. Its totient is φ = 28486728.

The previous prime is 42730117. The next prime is 42730133. The reversal of 42730119 is 91103724.

It is not a de Polignac number, because 42730119 - 2¹ = 42730117 is a prime.

It is a super-2 number, since 2×42730119² = 3651726139508322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 1582597 = 42730119 / (4 + 2 + 7 + 3 + 0 + 1 + 1 + 9).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42730092 and 42730101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42730117) 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, 791272 + ... + 791325.

It is an arithmetic number, because the mean of its divisors is an integer number (7912990).

Almost surely, 2^42730119 is an apocalyptic number.

42730119 is a deficient number, since it is larger than the sum of its proper divisors (20573801).

42730119 is a wasteful number, since it uses less digits than its factorization.

42730119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1582606 (or 1582600 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 42730119 is about 6536.8279004422. The cubic root of 42730119 is about 349.6053210924.

It can be divided in two parts, 42730 and 119, that added together give a square (42849 = 207²).

The spelling of 42730119 in words is "forty-two million, seven hundred thirty thousand, one hundred nineteen".