1003152440 has 16 divisors (see below), whose sum is σ = 2257093080. Its totient is φ = 401260960.

The previous prime is 1003152419. The next prime is 1003152457. The reversal of 1003152440 is 442513001.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

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, 12539366 + ... + 12539445.

Almost surely, 2^1003152440 is an apocalyptic number.

1003152440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1003152440 is an abundant number, since it is smaller than the sum of its proper divisors (1253940640).

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

1003152440 is a wasteful number, since it uses less digits than its factorization.

1003152440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25078822 (or 25078818 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 1003152440 is about 31672.5818335039. The cubic root of 1003152440 is about 1001.0497110545.

Adding to 1003152440 its reverse (442513001), we get a palindrome (1445665441).

The spelling of 1003152440 in words is "one billion, three million, one hundred fifty-two thousand, four hundred forty".