400280422 has 8 divisors (see below), whose sum is σ = 600607872. Its totient is φ = 200077800.

The previous prime is 400280399. The next prime is 400280423. The reversal of 400280422 is 224082004.

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

It is a junction number, because it is equal to n+sod(n) for n = 400280393 and 400280402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400280423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22729 + ... + 36292.

It is an arithmetic number, because the mean of its divisors is an integer number (75075984).

Almost surely, 2^400280422 is an apocalyptic number.

400280422 is a deficient number, since it is larger than the sum of its proper divisors (200327450).

400280422 is a wasteful number, since it uses less digits than its factorization.

400280422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62414.

The product of its (nonzero) digits is 1024, while the sum is 22.

The square root of 400280422 is about 20007.0093217352. The cubic root of 400280422 is about 736.9784400879.

The spelling of 400280422 in words is "four hundred million, two hundred eighty thousand, four hundred twenty-two".