400841952 has 72 divisors (see below), whose sum is σ = 1224013896. Its totient is φ = 114524928.

The previous prime is 400841951. The next prime is 400841977. The reversal of 400841952 is 259148004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400841951) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37903 + ... + 47310.

It is an arithmetic number, because the mean of its divisors is an integer number (17000193).

Almost surely, 2^400841952 is an apocalyptic number.

400841952 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

400841952 is an abundant number, since it is smaller than the sum of its proper divisors (823171944).

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

400841952 is a wasteful number, since it uses less digits than its factorization.

400841952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85240 (or 85225 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 400841952 is about 20021.0377353423. The cubic root of 400841952 is about 737.3229003847.

Adding to 400841952 its reverse (259148004), we get a palindrome (659989956).

The spelling of 400841952 in words is "four hundred million, eight hundred forty-one thousand, nine hundred fifty-two".