1200424420 has 48 divisors (see below), whose sum is σ = 2718535680. Its totient is φ = 442624896.

The previous prime is 1200424409. The next prime is 1200424457. The reversal of 1200424420 is 244240021.

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, 215389 + ... + 220891.

It is an arithmetic number, because the mean of its divisors is an integer number (56636160).

Almost surely, 2^1200424420 is an apocalyptic number.

1200424420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1200424420 is an abundant number, since it is smaller than the sum of its proper divisors (1518111260).

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

1200424420 is a wasteful number, since it uses less digits than its factorization.

1200424420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6364 (or 6362 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 1200424420 is about 34647.1415848407. The cubic root of 1200424420 is about 1062.7838359572.

Adding to 1200424420 its reverse (244240021), we get a palindrome (1444664441).

The spelling of 1200424420 in words is "one billion, two hundred million, four hundred twenty-four thousand, four hundred twenty".