1400421001 has 16 divisors (see below), whose sum is σ = 1653928960. Its totient is φ = 1160360640.

The previous prime is 1400420971. The next prime is 1400421007. The reversal of 1400421001 is 1001240041.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1400421001 is a prime.

It is a super-2 number, since 2×1400421001² = 3922357960083684002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1400421007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 228955 + ... + 234991.

It is an arithmetic number, because the mean of its divisors is an integer number (103370560).

Almost surely, 2^1400421001 is an apocalyptic number.

It is an amenable number.

1400421001 is a deficient number, since it is larger than the sum of its proper divisors (253507959).

1400421001 is a wasteful number, since it uses less digits than its factorization.

1400421001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7144.

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

The square root of 1400421001 is about 37422.1993073630. The cubic root of 1400421001 is about 1118.8010663581.

Adding to 1400421001 its reverse (1001240041), we get a palindrome (2401661042).

The spelling of 1400421001 in words is "one billion, four hundred million, four hundred twenty-one thousand, one".