400737782442 has 8 divisors (see below), whose sum is σ = 801475564896. Its totient is φ = 133579260812.

The previous prime is 400737782429. The next prime is 400737782483. The reversal of 400737782442 is 244287737004.

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

400737782442 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 400737782391 and 400737782400.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33394815198 + ... + 33394815209.

It is an arithmetic number, because the mean of its divisors is an integer number (100184445612).

Almost surely, 2^400737782442 is an apocalyptic number.

400737782442 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

400737782442 is a wasteful number, since it uses less digits than its factorization.

400737782442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66789630412.

The product of its (nonzero) digits is 2107392, while the sum is 48.

The spelling of 400737782442 in words is "four hundred billion, seven hundred thirty-seven million, seven hundred eighty-two thousand, four hundred forty-two".