42040274 has 32 divisors (see below), whose sum is σ = 70087680. Its totient is φ = 18822672.

The previous prime is 42040259. The next prime is 42040277. The reversal of 42040274 is 47204024.

42040274 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×42040274³ (a number of 24 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is not an unprimeable number, because it can be changed into a prime (42040277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89789 + ... + 90255.

It is an arithmetic number, because the mean of its divisors is an integer number (2190240).

Almost surely, 2^42040274 is an apocalyptic number.

42040274 is a deficient number, since it is larger than the sum of its proper divisors (28047406).

42040274 is a wasteful number, since it uses less digits than its factorization.

42040274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 614.

The product of its (nonzero) digits is 1792, while the sum is 23.

The square root of 42040274 is about 6483.8471604442. The cubic root of 42040274 is about 347.7137349443.

Adding to 42040274 its reverse (47204024), we get a palindrome (89244298).

The spelling of 42040274 in words is "forty-two million, forty thousand, two hundred seventy-four".