1140451438 has 8 divisors (see below), whose sum is σ = 1955059632. Its totient is φ = 488764896.

The previous prime is 1140451393. The next prime is 1140451439. The reversal of 1140451438 is 8341540411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1140451439) 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, 40730395 + ... + 40730422.

It is an arithmetic number, because the mean of its divisors is an integer number (244382454).

Almost surely, 2^1140451438 is an apocalyptic number.

1140451438 is a deficient number, since it is larger than the sum of its proper divisors (814608194).

1140451438 is an equidigital number, since it uses as much as digits as its factorization.

1140451438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81460826.

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 1140451438 is about 33770.5705903824. The cubic root of 1140451438 is about 1044.7818010120.

Adding to 1140451438 its reverse (8341540411), we get a palindrome (9481991849).

The spelling of 1140451438 in words is "one billion, one hundred forty million, four hundred fifty-one thousand, four hundred thirty-eight".