400342244201 has 8 divisors (see below), whose sum is σ = 402742792584. Its totient is φ = 397945416960.

The previous prime is 400342244173. The next prime is 400342244219. The reversal of 400342244201 is 102442243004.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 274629450601 + 125712793600 = 524051^2 + 354560^2 .

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 400342244201 - 2³⁴ = 383162375017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (400342244231) 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, 714320 + ... + 1144961.

It is an arithmetic number, because the mean of its divisors is an integer number (50342849073).

Almost surely, 2^400342244201 is an apocalyptic number.

It is an amenable number.

400342244201 is a deficient number, since it is larger than the sum of its proper divisors (2400548383).

400342244201 is a wasteful number, since it uses less digits than its factorization.

400342244201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1860571.

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 400342244201 its reverse (102442243004), we get a palindrome (502784487205).

The spelling of 400342244201 in words is "four hundred billion, three hundred forty-two million, two hundred forty-four thousand, two hundred one".