1234005420 has 48 divisors (see below), whose sum is σ = 3456794880. Its totient is φ = 328917696.

The previous prime is 1234005391. The next prime is 1234005449. The reversal of 1234005420 is 245004321.

It is an interprime number because it is at equal distance from previous prime (1234005391) and next prime (1234005449).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 204811 + ... + 210749.

It is an arithmetic number, because the mean of its divisors is an integer number (72016560).

Almost surely, 2^1234005420 is an apocalyptic number.

1234005420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1234005420 is an abundant number, since it is smaller than the sum of its proper divisors (2222789460).

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

1234005420 is a wasteful number, since it uses less digits than its factorization.

1234005420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9414 (or 9412 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 1234005420 is about 35128.4132861136. The cubic root of 1234005420 is about 1072.6030372478.

Adding to 1234005420 its reverse (245004321), we get a palindrome (1479009741).

The spelling of 1234005420 in words is "one billion, two hundred thirty-four million, five thousand, four hundred twenty".