240513042 has 128 divisors (see below), whose sum is σ = 642981888. Its totient is φ = 58060800.

The previous prime is 240513029. The next prime is 240513043. The reversal of 240513042 is 240315042.

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

It is not an unprimeable number, because it can be changed into a prime (240513043) 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 63 ways as a sum of consecutive naturals, for example, 887367 + ... + 887637.

It is an arithmetic number, because the mean of its divisors is an integer number (5023296).

Almost surely, 2^240513042 is an apocalyptic number.

240513042 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 240513042, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (321490944).

240513042 is an abundant number, since it is smaller than the sum of its proper divisors (402468846).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

240513042 is a wasteful number, since it uses less digits than its factorization.

240513042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 240513042 is about 15508.4829045268. The cubic root of 240513042 is about 621.8890029152.

Adding to 240513042 its reverse (240315042), we get a palindrome (480828084).

The spelling of 240513042 in words is "two hundred forty million, five hundred thirteen thousand, forty-two".