1003397408 has 24 divisors (see below), whose sum is σ = 2127396348. Its totient is φ = 463106304.

The previous prime is 1003397401. The next prime is 1003397441. The reversal of 1003397408 is 8047933001.

It can be written as a sum of positive squares in 2 ways, for example, as 990235024 + 13162384 = 31468^2 + 3628^2 .

It is a super-2 number, since 2×1003397408² = 2013612716762236928, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1003397401) 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, 1205591 + ... + 1206422.

Almost surely, 2^1003397408 is an apocalyptic number.

It is an amenable number.

1003397408 is an abundant number, since it is smaller than the sum of its proper divisors (1123998940).

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

1003397408 is a wasteful number, since it uses less digits than its factorization.

1003397408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2412036 (or 2412028 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 1003397408 is about 31676.4487908604. The cubic root of 1003397408 is about 1001.1311892617.

The spelling of 1003397408 in words is "one billion, three million, three hundred ninety-seven thousand, four hundred eight".