1400004121 has 8 divisors (see below), whose sum is σ = 1415496960. Its totient is φ = 1384565952.

The previous prime is 1400004083. The next prime is 1400004139. The reversal of 1400004121 is 1214000041.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1400004121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1400004421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38940 + ... + 65698.

It is an arithmetic number, because the mean of its divisors is an integer number (176937120).

Almost surely, 2^1400004121 is an apocalyptic number.

It is an amenable number.

1400004121 is a deficient number, since it is larger than the sum of its proper divisors (15492839).

1400004121 is a wasteful number, since it uses less digits than its factorization.

1400004121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27335.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 1400004121 is about 37416.6289368778. The cubic root of 1400004121 is about 1118.6900397273.

Adding to 1400004121 its reverse (1214000041), we get a palindrome (2614004162).

The spelling of 1400004121 in words is "one billion, four hundred million, four thousand, one hundred twenty-one".