1142440630 has 16 divisors (see below), whose sum is σ = 2177357760. Its totient is φ = 430095232.

The previous prime is 1142440603. The next prime is 1142440657. The reversal of 1142440630 is 360442411.

It is an interprime number because it is at equal distance from previous prime (1142440603) and next prime (1142440657).

It is a junction number, because it is equal to n+sod(n) for n = 1142440595 and 1142440604.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3359950 + ... + 3360289.

It is an arithmetic number, because the mean of its divisors is an integer number (136084860).

Almost surely, 2^1142440630 is an apocalyptic number.

1142440630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1142440630 is a deficient number, since it is larger than the sum of its proper divisors (1034917130).

1142440630 is a wasteful number, since it uses less digits than its factorization.

1142440630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6720263.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 1142440630 is about 33800.0093195253. The cubic root of 1142440630 is about 1045.3888893934.

The spelling of 1142440630 in words is "one billion, one hundred forty-two million, four hundred forty thousand, six hundred thirty".