1230254440 has 32 divisors (see below), whose sum is σ = 2842888680. Its totient is φ = 478801152.

The previous prime is 1230254411. The next prime is 1230254479. The reversal of 1230254440 is 444520321.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1192873444 + 37380996 = 34538^2 + 6114^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 414147 + ... + 417106.

Almost surely, 2^1230254440 is an apocalyptic number.

1230254440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1230254440 is an abundant number, since it is smaller than the sum of its proper divisors (1612634240).

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

1230254440 is a wasteful number, since it uses less digits than its factorization.

1230254440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 831301 (or 831297 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 1230254440 is about 35074.9831076224. The cubic root of 1230254440 is about 1071.5151446829.

Adding to 1230254440 its reverse (444520321), we get a palindrome (1674774761).

The spelling of 1230254440 in words is "one billion, two hundred thirty million, two hundred fifty-four thousand, four hundred forty".