1421140401 has 24 divisors (see below), whose sum is σ = 2129487360. Its totient is φ = 912600000.

The previous prime is 1421140387. The next prime is 1421140429. The reversal of 1421140401 is 1040411241.

1421140401 is a `hidden beast` number, since 14 + 211 + 40 + 401 = 666.

It is not a de Polignac number, because 1421140401 - 2¹⁷ = 1421009329 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1421140451) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4776 + ... + 53526.

It is an arithmetic number, because the mean of its divisors is an integer number (88728640).

Almost surely, 2^1421140401 is an apocalyptic number.

It is an amenable number.

1421140401 is a deficient number, since it is larger than the sum of its proper divisors (708346959).

1421140401 is a wasteful number, since it uses less digits than its factorization.

1421140401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48877 (or 48874 counting only the distinct ones).

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

The square root of 1421140401 is about 37698.0158761705. The cubic root of 1421140401 is about 1124.2916761920.

Adding to 1421140401 its reverse (1040411241), we get a palindrome (2461551642).

The spelling of 1421140401 in words is "one billion, four hundred twenty-one million, one hundred forty thousand, four hundred one".