400422246 has 32 divisors (see below), whose sum is σ = 920747520. Its totient is φ = 113719296.

The previous prime is 400422181. The next prime is 400422247. The reversal of 400422246 is 642224004.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400422247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21531 + ... + 35558.

It is an arithmetic number, because the mean of its divisors is an integer number (28773360).

Almost surely, 2^400422246 is an apocalyptic number.

400422246 is an abundant number, since it is smaller than the sum of its proper divisors (520325274).

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

400422246 is a wasteful number, since it uses less digits than its factorization.

400422246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57268.

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 400422246 is about 20010.5533656618. The cubic root of 400422246 is about 737.0654698155.

The spelling of 400422246 in words is "four hundred million, four hundred twenty-two thousand, two hundred forty-six".