400003674 has 16 divisors (see below), whose sum is σ = 914294208. Its totient is φ = 114286752.

The previous prime is 400003663. The next prime is 400003679. The reversal of 400003674 is 476300004.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (400003679) 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, 4761907 + ... + 4761990.

It is an arithmetic number, because the mean of its divisors is an integer number (57143388).

Almost surely, 2^400003674 is an apocalyptic number.

400003674 is an abundant number, since it is smaller than the sum of its proper divisors (514290534).

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

400003674 is a wasteful number, since it uses less digits than its factorization.

400003674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9523909.

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 400003674 is about 20000.0918497891. The cubic root of 400003674 is about 736.8085555765.

Adding to 400003674 its reverse (476300004), we get a palindrome (876303678).

The spelling of 400003674 in words is "four hundred million, three thousand, six hundred seventy-four".