400014424 has 8 divisors (see below), whose sum is σ = 750027060. Its totient is φ = 200007208.

The previous prime is 400014347. The next prime is 400014431. The reversal of 400014424 is 424410004.

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (19) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25000894 + ... + 25000909.

Almost surely, 2^400014424 is an apocalyptic number.

It is an amenable number.

400014424 is a deficient number, since it is larger than the sum of its proper divisors (350012636).

400014424 is a wasteful number, since it uses less digits than its factorization.

400014424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50001809 (or 50001805 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 400014424 is about 20000.3605967492. The cubic root of 400014424 is about 736.8151560333.

Adding to 400014424 its reverse (424410004), we get a palindrome (824424428).

The spelling of 400014424 in words is "four hundred million, fourteen thousand, four hundred twenty-four".