1230411440 has 20 divisors (see below), whose sum is σ = 2860706784. Its totient is φ = 492164544.

The previous prime is 1230411437. The next prime is 1230411527. The reversal of 1230411440 is 441140321.

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7689992 + ... + 7690151.

Almost surely, 2^1230411440 is an apocalyptic number.

1230411440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1230411440 is an abundant number, since it is smaller than the sum of its proper divisors (1630295344).

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

1230411440 is a wasteful number, since it uses less digits than its factorization.

1230411440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15380156 (or 15380150 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1230411440 is about 35077.2210985990. The cubic root of 1230411440 is about 1071.5607235259.

Adding to 1230411440 its reverse (441140321), we get a palindrome (1671551761).

The spelling of 1230411440 in words is "one billion, two hundred thirty million, four hundred eleven thousand, four hundred forty".