1409897128 has 32 divisors (see below), whose sum is σ = 2785068000. Its totient is φ = 667275840.

The previous prime is 1409897123. The next prime is 1409897131. The reversal of 1409897128 is 8217989041.

It is not an unprimeable number, because it can be changed into a prime (1409897123) by changing a digit.

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, 213963 + ... + 220453.

It is an arithmetic number, because the mean of its divisors is an integer number (87033375).

Almost surely, 2^1409897128 is an apocalyptic number.

It is an amenable number.

1409897128 is a deficient number, since it is larger than the sum of its proper divisors (1375170872).

1409897128 is a wasteful number, since it uses less digits than its factorization.

1409897128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7945 (or 7941 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 49.

The square root of 1409897128 is about 37548.5968845708. The cubic root of 1409897128 is about 1121.3188990761.

The spelling of 1409897128 in words is "one billion, four hundred nine million, eight hundred ninety-seven thousand, one hundred twenty-eight".