1230440148 has 36 divisors (see below), whose sum is σ = 3554605600. Its totient is φ = 351554256.

The previous prime is 1230440137. The next prime is 1230440149. The reversal of 1230440148 is 8410440321.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230440149) 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, 2441098 + ... + 2441601.

Almost surely, 2^1230440148 is an apocalyptic number.

1230440148 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1230440148 is an abundant number, since it is smaller than the sum of its proper divisors (2324165452).

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

1230440148 is a wasteful number, since it uses less digits than its factorization.

1230440148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4882716 (or 4882711 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 1230440148 is about 35077.6303076476. The cubic root of 1230440148 is about 1071.5690573577.

Adding to 1230440148 its reverse (8410440321), we get a palindrome (9640880469).

The spelling of 1230440148 in words is "one billion, two hundred thirty million, four hundred forty thousand, one hundred forty-eight".