400340336 has 60 divisors (see below), whose sum is σ = 893195064. Its totient is φ = 172368000.

The previous prime is 400340329. The next prime is 400340341. The reversal of 400340336 is 633043004.

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 11 ways as a sum of consecutive naturals, for example, 60386 + ... + 66686.

Almost surely, 2^400340336 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 400340336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (446597532).

400340336 is an abundant number, since it is smaller than the sum of its proper divisors (492854728).

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

400340336 is a wasteful number, since it uses less digits than its factorization.

400340336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6358 (or 6333 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 23.

The square root of 400340336 is about 20008.5065909478. The cubic root of 400340336 is about 737.0152085806.

The spelling of 400340336 in words is "four hundred million, three hundred forty thousand, three hundred thirty-six".