1401121404 has 36 divisors (see below), whose sum is σ = 3569622784. Its totient is φ = 463361472.

The previous prime is 1401121361. The next prime is 1401121411. The reversal of 1401121404 is 4041211041.

1401121404 is a `hidden beast` number, since 140 + 1 + 121 + 404 = 666.

1401121404 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 148657 + ... + 157800.

Almost surely, 2^1401121404 is an apocalyptic number.

It is an amenable number.

1401121404 is an abundant number, since it is smaller than the sum of its proper divisors (2168501380).

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

1401121404 is a wasteful number, since it uses less digits than its factorization.

1401121404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306594 (or 306589 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 1401121404 is about 37431.5562593916. The cubic root of 1401121404 is about 1118.9875533790.

Adding to 1401121404 its reverse (4041211041), we get a palindrome (5442332445).

The spelling of 1401121404 in words is "one billion, four hundred one million, one hundred twenty-one thousand, four hundred four".