1405789038 has 12 divisors (see below), whose sum is σ = 3045876288. Its totient is φ = 468596340.

The previous prime is 1405789037. The next prime is 1405789051. The reversal of 1405789038 is 8309875041.

1405789038 is a `hidden beast` number, since 1 + 40 + 578 + 9 + 0 + 38 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 1405788984 and 1405789002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1405789037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 39049678 + ... + 39049713.

It is an arithmetic number, because the mean of its divisors is an integer number (253823024).

Almost surely, 2^1405789038 is an apocalyptic number.

1405789038 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1405789038 is an abundant number, since it is smaller than the sum of its proper divisors (1640087250).

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

1405789038 is a wasteful number, since it uses less digits than its factorization.

1405789038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78099399 (or 78099396 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The square root of 1405789038 is about 37493.8533362470. The cubic root of 1405789038 is about 1120.2287580140.

The spelling of 1405789038 in words is "one billion, four hundred five million, seven hundred eighty-nine thousand, thirty-eight".