400358480 has 40 divisors (see below), whose sum is σ = 933536232. Its totient is φ = 159678464.

The previous prime is 400358473. The next prime is 400358489. The reversal of 400358480 is 84853004.

It can be written as a sum of positive squares in 4 ways, for example, as 140375104 + 259983376 = 11848^2 + 16124^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400358489) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 21152 + ... + 35328.

Almost surely, 2^400358480 is an apocalyptic number.

400358480 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

400358480 is an abundant number, since it is smaller than the sum of its proper divisors (533177752).

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

400358480 is a wasteful number, since it uses less digits than its factorization.

400358480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14543 (or 14537 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 32.

The square root of 400358480 is about 20008.9599929632. The cubic root of 400358480 is about 737.0263426090.

The spelling of 400358480 in words is "four hundred million, three hundred fifty-eight thousand, four hundred eighty".