400024010451 has 32 divisors (see below), whose sum is σ = 585106816000. Its totient is φ = 243052246944.

The previous prime is 400024010437. The next prime is 400024010459. The reversal of 400024010451 is 154010420004.

It is a happy number.

It is not a de Polignac number, because 400024010451 - 2¹¹ = 400024008403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (400024010459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 136560 + ... + 904818.

It is an arithmetic number, because the mean of its divisors is an integer number (18284588000).

Almost surely, 2^400024010451 is an apocalyptic number.

400024010451 is a deficient number, since it is larger than the sum of its proper divisors (185082805549).

400024010451 is an equidigital number, since it uses as much as digits as its factorization.

400024010451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 768380 (or 768354 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

Adding to 400024010451 its reverse (154010420004), we get a palindrome (554034430455).

The spelling of 400024010451 in words is "four hundred billion, twenty-four million, ten thousand, four hundred fifty-one".