400150443 has 16 divisors (see below), whose sum is σ = 665185536. Its totient is φ = 207870240.

The previous prime is 400150441. The next prime is 400150451. The reversal of 400150443 is 344051004.

It is not a de Polignac number, because 400150443 - 2¹ = 400150441 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (400150441) 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, 865896 + ... + 866357.

It is an arithmetic number, because the mean of its divisors is an integer number (41574096).

Almost surely, 2^400150443 is an apocalyptic number.

400150443 is a deficient number, since it is larger than the sum of its proper divisors (265035093).

400150443 is a wasteful number, since it uses less digits than its factorization.

400150443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1732274.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 400150443 is about 20003.7607214244. The cubic root of 400150443 is about 736.8986609416.

The spelling of 400150443 in words is "four hundred million, one hundred fifty thousand, four hundred forty-three".