240030400 has 84 divisors (see below), whose sum is σ = 605195640. Its totient is φ = 93644800.

The previous prime is 240030397. The next prime is 240030403. The reversal of 240030400 is 4030042.

It is an interprime number because it is at equal distance from previous prime (240030397) and next prime (240030403).

It is a super-2 number, since 2×240030400² = 115229185848320000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (240030403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 63771 + ... + 67429.

It is an arithmetic number, because the mean of its divisors is an integer number (7204710).

Almost surely, 2^240030400 is an apocalyptic number.

240030400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 240030400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (302597820).

240030400 is an abundant number, since it is smaller than the sum of its proper divisors (365165240).

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

240030400 is a wasteful number, since it uses less digits than its factorization.

240030400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3722 (or 3707 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 13.

The square root of 240030400 is about 15492.9145095427. The cubic root of 240030400 is about 621.4727389353.

Adding to 240030400 its reverse (4030042), we get a palindrome (244060442).

The spelling of 240030400 in words is "two hundred forty million, thirty thousand, four hundred".