1421036401 has 8 divisors (see below), whose sum is σ = 1438248960. Its totient is φ = 1403918208.

The previous prime is 1421036363. The next prime is 1421036483. The reversal of 1421036401 is 1046301241.

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

It is a cyclic number.

It is not a de Polignac number, because 1421036401 - 2¹⁹ = 1420512113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1421033401) 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, 6945 + ... + 53761.

It is an arithmetic number, because the mean of its divisors is an integer number (179781120).

Almost surely, 2^1421036401 is an apocalyptic number.

It is an amenable number.

1421036401 is a deficient number, since it is larger than the sum of its proper divisors (17212559).

1421036401 is a wasteful number, since it uses less digits than its factorization.

1421036401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47183.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 1421036401 is about 37696.6364679927. The cubic root of 1421036401 is about 1124.2642500520.

Adding to 1421036401 its reverse (1046301241), we get a palindrome (2467337642).

The spelling of 1421036401 in words is "one billion, four hundred twenty-one million, thirty-six thousand, four hundred one".