1142239320 has 80 divisors (see below), whose sum is σ = 3839204160. Its totient is φ = 304596288.

The previous prime is 1142239313. The next prime is 1142239331. The reversal of 1142239320 is 239322411.

It is a happy number.

1142239320 is a `hidden beast` number, since 114 + 223 + 9 + 320 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 173032 + ... + 179511.

It is an arithmetic number, because the mean of its divisors is an integer number (47990052).

Almost surely, 2^1142239320 is an apocalyptic number.

1142239320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1142239320 is an abundant number, since it is smaller than the sum of its proper divisors (2696964840).

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

1142239320 is a wasteful number, since it uses less digits than its factorization.

1142239320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352566 (or 352553 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 1142239320 is about 33797.0312305682. The cubic root of 1142239320 is about 1045.3274829641.

The spelling of 1142239320 in words is "one billion, one hundred forty-two million, two hundred thirty-nine thousand, three hundred twenty".