400636938241 has 8 divisors (see below), whose sum is σ = 402074140544. Its totient is φ = 399199888080.

The previous prime is 400636938239. The next prime is 400636938311. The reversal of 400636938241 is 142839636004.

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 400636938241 - 2¹ = 400636938239 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 400636938191 and 400636938200.

It is not an unprimeable number, because it can be changed into a prime (400636938211) 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, 9428455 + ... + 9470851.

It is an arithmetic number, because the mean of its divisors is an integer number (50259267568).

Almost surely, 2^400636938241 is an apocalyptic number.

It is an amenable number.

400636938241 is a deficient number, since it is larger than the sum of its proper divisors (1437202303).

400636938241 is a wasteful number, since it uses less digits than its factorization.

400636938241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76071.

The product of its (nonzero) digits is 746496, while the sum is 46.

The spelling of 400636938241 in words is "four hundred billion, six hundred thirty-six million, nine hundred thirty-eight thousand, two hundred forty-one".