2104400390 has 16 divisors (see below), whose sum is σ = 3788443008. Its totient is φ = 841644096.

The previous prime is 2104400383. The next prime is 2104400429. The reversal of 2104400390 is 930044012.

It is a super-3 number, since 3×2104400390³ (a number of 29 digits) contains 333 as substring.

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 7 ways as a sum of consecutive naturals, for example, 135674 + ... + 150386.

It is an arithmetic number, because the mean of its divisors is an integer number (236777688).

Almost surely, 2^2104400390 is an apocalyptic number.

2104400390 is a deficient number, since it is larger than the sum of its proper divisors (1684042618).

2104400390 is a wasteful number, since it uses less digits than its factorization.

2104400390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29023.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 2104400390 is about 45873.7440155041. The cubic root of 2104400390 is about 1281.4729929858.

The spelling of 2104400390 in words is "two billion, one hundred four million, four hundred thousand, three hundred ninety".