400461340 has 48 divisors (see below), whose sum is σ = 860882400. Its totient is φ = 156430080.

The previous prime is 400461329. The next prime is 400461389. The reversal of 400461340 is 43164004.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 180679 + ... + 182881.

It is an arithmetic number, because the mean of its divisors is an integer number (17935050).

Almost surely, 2^400461340 is an apocalyptic number.

It is an amenable number.

400461340 is an abundant number, since it is smaller than the sum of its proper divisors (460421060).

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

400461340 is a wasteful number, since it uses less digits than its factorization.

400461340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2422 (or 2420 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 400461340 is about 20011.5301763758. The cubic root of 400461340 is about 737.0894560784.

The spelling of 400461340 in words is "four hundred million, four hundred sixty-one thousand, three hundred forty".