42303261 has 32 divisors (see below), whose sum is σ = 75737088. Its totient is φ = 20283840.

The previous prime is 42303241. The next prime is 42303263. The reversal of 42303261 is 16230324.

It is a happy number.

It is not a de Polignac number, because 42303261 - 2¹¹ = 42301213 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42303263) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4041 + ... + 10046.

It is an arithmetic number, because the mean of its divisors is an integer number (2366784).

Almost surely, 2^42303261 is an apocalyptic number.

It is an amenable number.

42303261 is a deficient number, since it is larger than the sum of its proper divisors (33433827).

42303261 is a wasteful number, since it uses less digits than its factorization.

42303261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14121.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 42303261 is about 6504.0957096279. The cubic root of 42303261 is about 348.4372805980.

Adding to 42303261 its reverse (16230324), we get a palindrome (58533585).

It can be divided in two parts, 42 and 303261, that added together give a palindrome (303303).

The spelling of 42303261 in words is "forty-two million, three hundred three thousand, two hundred sixty-one".