1030142440 has 16 divisors (see below), whose sum is σ = 2317820580. Its totient is φ = 412056960.

The previous prime is 1030142413. The next prime is 1030142459. The reversal of 1030142440 is 442410301.

It can be written as a sum of positive squares in 2 ways, for example, as 940158244 + 89984196 = 30662^2 + 9486^2 .

It is a super-2 number, since 2×1030142440² = 2122386893378307200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12876741 + ... + 12876820.

Almost surely, 2^1030142440 is an apocalyptic number.

1030142440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1030142440 is an abundant number, since it is smaller than the sum of its proper divisors (1287678140).

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

1030142440 is a wasteful number, since it uses less digits than its factorization.

1030142440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25753572 (or 25753568 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 1030142440 is about 32095.8321281751. The cubic root of 1030142440 is about 1009.9481854280.

Adding to 1030142440 its reverse (442410301), we get a palindrome (1472552741).

The spelling of 1030142440 in words is "one billion, thirty million, one hundred forty-two thousand, four hundred forty".