1240421300 has 36 divisors (see below), whose sum is σ = 2764471500. Its totient is φ = 482757120.

The previous prime is 1240421267. The next prime is 1240421309. The reversal of 1240421300 is 31240421.

It can be written as a sum of positive squares in 6 ways, for example, as 154455184 + 1085966116 = 12428^2 + 32954^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240421309) 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, 163925 + ... + 171324.

It is an arithmetic number, because the mean of its divisors is an integer number (76790875).

Almost surely, 2^1240421300 is an apocalyptic number.

1240421300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1240421300 is an abundant number, since it is smaller than the sum of its proper divisors (1524050200).

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

1240421300 is a wasteful number, since it uses less digits than its factorization.

1240421300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335300 (or 335293 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1240421300 is about 35219.6152733104. The cubic root of 1240421300 is about 1074.4587287732.

Adding to 1240421300 its reverse (31240421), we get a palindrome (1271661721).

The spelling of 1240421300 in words is "one billion, two hundred forty million, four hundred twenty-one thousand, three hundred".