1142023040 has 64 divisors (see below), whose sum is σ = 2771001360. Its totient is φ = 449974272.

The previous prime is 1142023039. The next prime is 1142023067. The reversal of 1142023040 is 403202411.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29564 + ... + 56196.

Almost surely, 2^1142023040 is an apocalyptic number.

1142023040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1142023040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1385500680).

1142023040 is an abundant number, since it is smaller than the sum of its proper divisors (1628978320).

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

1142023040 is an equidigital number, since it uses as much as digits as its factorization.

1142023040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26719 (or 26707 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1142023040 is about 33793.8313897670. The cubic root of 1142023040 is about 1045.2615021330.

Adding to 1142023040 its reverse (403202411), we get a palindrome (1545225451).

The spelling of 1142023040 in words is "one billion, one hundred forty-two million, twenty-three thousand, forty".