1409155990 has 32 divisors (see below), whose sum is σ = 2776978080. Its totient is φ = 510585600.

The previous prime is 1409155961. The next prime is 1409156003. The reversal of 1409155990 is 995519041.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 8116 + ... + 53704.

It is an arithmetic number, because the mean of its divisors is an integer number (86780565).

Almost surely, 2^1409155990 is an apocalyptic number.

1409155990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1409155990 is a deficient number, since it is larger than the sum of its proper divisors (1367822090).

1409155990 is a wasteful number, since it uses less digits than its factorization.

1409155990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45888.

The product of its (nonzero) digits is 72900, while the sum is 43.

The square root of 1409155990 is about 37538.7265367380. The cubic root of 1409155990 is about 1121.1223840985.

The spelling of 1409155990 in words is "one billion, four hundred nine million, one hundred fifty-five thousand, nine hundred ninety".