1234452040 has 32 divisors (see below), whose sum is σ = 2923704000. Its totient is φ = 467792064.

The previous prime is 1234452017. The next prime is 1234452049. The reversal of 1234452040 is 402544321.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1234451996 and 1234452014.

It is not an unprimeable number, because it can be changed into a prime (1234452049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 811380 + ... + 812899.

It is an arithmetic number, because the mean of its divisors is an integer number (91365750).

Almost surely, 2^1234452040 is an apocalyptic number.

1234452040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1234452040 is an abundant number, since it is smaller than the sum of its proper divisors (1689251960).

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

1234452040 is a wasteful number, since it uses less digits than its factorization.

1234452040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1624309 (or 1624305 counting only the distinct ones).

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

The square root of 1234452040 is about 35134.7696733592. The cubic root of 1234452040 is about 1072.7324230077.

Adding to 1234452040 its reverse (402544321), we get a palindrome (1636996361).

The spelling of 1234452040 in words is "one billion, two hundred thirty-four million, four hundred fifty-two thousand, forty".