1443155442 has 32 divisors (see below), whose sum is σ = 2901199680. Its totient is φ = 478578240.

The previous prime is 1443155423. The next prime is 1443155479. The reversal of 1443155442 is 2445513441.

It is a happy number.

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, 1757392 + ... + 1758212.

It is an arithmetic number, because the mean of its divisors is an integer number (90662490).

Almost surely, 2^1443155442 is an apocalyptic number.

1443155442 is an abundant number, since it is smaller than the sum of its proper divisors (1458044238).

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

1443155442 is a wasteful number, since it uses less digits than its factorization.

1443155442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1978.

The product of its digits is 38400, while the sum is 33.

The square root of 1443155442 is about 37988.8857693931. The cubic root of 1443155442 is about 1130.0674619708.

Adding to 1443155442 its reverse (2445513441), we get a palindrome (3888668883).

The spelling of 1443155442 in words is "one billion, four hundred forty-three million, one hundred fifty-five thousand, four hundred forty-two".