1142621432 has 16 divisors (see below), whose sum is σ = 2143484640. Its totient is φ = 571025536.

The previous prime is 1142621423. The next prime is 1142621437. The reversal of 1142621432 is 2341262411.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142621437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18113 + ... + 51120.

It is an arithmetic number, because the mean of its divisors is an integer number (133967790).

Almost surely, 2^1142621432 is an apocalyptic number.

It is an amenable number.

1142621432 is a deficient number, since it is larger than the sum of its proper divisors (1000863208).

1142621432 is a wasteful number, since it uses less digits than its factorization.

1142621432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71302 (or 71298 counting only the distinct ones).

The product of its digits is 2304, while the sum is 26.

The square root of 1142621432 is about 33802.6837987755. The cubic root of 1142621432 is about 1045.4440340335. Note that the first 3 decimals are identical.

Adding to 1142621432 its reverse (2341262411), we get a palindrome (3483883843).

The spelling of 1142621432 in words is "one billion, one hundred forty-two million, six hundred twenty-one thousand, four hundred thirty-two".