1400342401 has 4 divisors (see below), whose sum is σ = 1448630100. Its totient is φ = 1352054704.

The previous prime is 1400342399. The next prime is 1400342417. The reversal of 1400342401 is 1042430041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1042430041 = 19 ⋅54864739.

It can be written as a sum of positive squares in 2 ways, for example, as 477641025 + 922701376 = 21855^2 + 30376^2 .

It is not a de Polignac number, because 1400342401 - 2¹ = 1400342399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1400342201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24143806 + ... + 24143863.

It is an arithmetic number, because the mean of its divisors is an integer number (362157525).

Almost surely, 2^1400342401 is an apocalyptic number.

It is an amenable number.

1400342401 is a deficient number, since it is larger than the sum of its proper divisors (48287699).

1400342401 is an equidigital number, since it uses as much as digits as its factorization.

1400342401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48287698.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 1400342401 is about 37421.1491138367. The cubic root of 1400342401 is about 1118.7801346980.

Adding to 1400342401 its reverse (1042430041), we get a palindrome (2442772442).

The spelling of 1400342401 in words is "one billion, four hundred million, three hundred forty-two thousand, four hundred one".