1409240838 has 16 divisors (see below), whose sum is σ = 2833087536. Its totient is φ = 467312640.

The previous prime is 1409240813. The next prime is 1409240869. The reversal of 1409240838 is 8380429041.

It is a junction number, because it is equal to n+sod(n) for n = 1409240796 and 1409240805.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 607323 + ... + 609638.

It is an arithmetic number, because the mean of its divisors is an integer number (177067971).

Almost surely, 2^1409240838 is an apocalyptic number.

1409240838 is an abundant number, since it is smaller than the sum of its proper divisors (1423846698).

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

1409240838 is a wasteful number, since it uses less digits than its factorization.

1409240838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1217159.

The product of its (nonzero) digits is 55296, while the sum is 39.

The square root of 1409240838 is about 37539.8566592895. The cubic root of 1409240838 is about 1121.1448852939.

Adding to 1409240838 its reverse (8380429041), we get a palindrome (9789669879).

The spelling of 1409240838 in words is "one billion, four hundred nine million, two hundred forty thousand, eight hundred thirty-eight".