1240231420 has 12 divisors (see below), whose sum is σ = 2604486024. Its totient is φ = 496092560.

The previous prime is 1240231381. The next prime is 1240231459. The reversal of 1240231420 is 241320421.

It is an interprime number because it is at equal distance from previous prime (1240231381) and next prime (1240231459).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31005766 + ... + 31005805.

It is an arithmetic number, because the mean of its divisors is an integer number (217040502).

Almost surely, 2^1240231420 is an apocalyptic number.

1240231420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1240231420 is an abundant number, since it is smaller than the sum of its proper divisors (1364254604).

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

1240231420 is a wasteful number, since it uses less digits than its factorization.

1240231420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62011580 (or 62011578 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 1240231420 is about 35216.9195132113. The cubic root of 1240231420 is about 1074.4039009943.

Adding to 1240231420 its reverse (241320421), we get a palindrome (1481551841).

The spelling of 1240231420 in words is "one billion, two hundred forty million, two hundred thirty-one thousand, four hundred twenty".