1142420320 has 24 divisors (see below), whose sum is σ = 2698968384. Its totient is φ = 456968064.

The previous prime is 1142420309. The next prime is 1142420333. The reversal of 1142420320 is 230242411.

It is a congruent number.

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, 3569904 + ... + 3570223.

It is an arithmetic number, because the mean of its divisors is an integer number (112457016).

Almost surely, 2^1142420320 is an apocalyptic number.

1142420320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1142420320 is an abundant number, since it is smaller than the sum of its proper divisors (1556548064).

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

1142420320 is an equidigital number, since it uses as much as digits as its factorization.

1142420320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7140142 (or 7140134 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 1142420320 is about 33799.7088744859. The cubic root of 1142420320 is about 1045.3826944766.

Adding to 1142420320 its reverse (230242411), we get a palindrome (1372662731).

It can be divided in two parts, 1142420 and 320, that multiplied together give a square (365574400 = 19120²).

The spelling of 1142420320 in words is "one billion, one hundred forty-two million, four hundred twenty thousand, three hundred twenty".