400034424 has 32 divisors (see below), whose sum is σ = 1000938240. Its totient is φ = 133231200.

The previous prime is 400034413. The next prime is 400034443. The reversal of 400034424 is 424430004.

It is a self number, because there is not a number n which added to its sum of digits gives 400034424.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24529 + ... + 37439.

It is an arithmetic number, because the mean of its divisors is an integer number (31279320).

Almost surely, 2^400034424 is an apocalyptic number.

It is an amenable number.

400034424 is an abundant number, since it is smaller than the sum of its proper divisors (600903816).

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

400034424 is a wasteful number, since it uses less digits than its factorization.

400034424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14211 (or 14207 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 21.

The square root of 400034424 is about 20000.8605814850. The cubic root of 400034424 is about 736.8274356385.

Adding to 400034424 its reverse (424430004), we get a palindrome (824464428).

The spelling of 400034424 in words is "four hundred million, thirty-four thousand, four hundred twenty-four".