240231530 has 64 divisors (see below), whose sum is σ = 544631040. Its totient is φ = 74112000.

The previous prime is 240231479. The next prime is 240231547. The reversal of 240231530 is 35132042.

It is a happy number.

It is a super-2 number, since 2×240231530² = 115422376012281800, which contains 22 as substring.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 76226 + ... + 79314.

It is an arithmetic number, because the mean of its divisors is an integer number (8509860).

Almost surely, 2^240231530 is an apocalyptic number.

240231530 is an abundant number, since it is smaller than the sum of its proper divisors (304399510).

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

240231530 is a wasteful number, since it uses less digits than its factorization.

240231530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3215.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 240231530 is about 15499.4041820968. The cubic root of 240231530 is about 621.6462751695.

Adding to 240231530 its reverse (35132042), we get a palindrome (275363572).

The spelling of 240231530 in words is "two hundred forty million, two hundred thirty-one thousand, five hundred thirty".