400334302421400 has 96 divisors (see below), whose sum is σ = 1241045989468560. Its totient is φ = 106754983703040.

The previous prime is 400334302421299. The next prime is 400334302421401. The reversal of 400334302421400 is 4124203433004.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400334302421401) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 76631154 + ... + 81688446.

Almost surely, 2^{400334302421400} is an apocalyptic number.

400334302421400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

400334302421400 is an abundant number, since it is smaller than the sum of its proper divisors (840711687047160).

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

400334302421400 is a wasteful number, since it uses less digits than its factorization.

400334302421400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5189245 (or 5189236 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 30.

Adding to 400334302421400 its reverse (4124203433004), we get a palindrome (404458505854404).

The spelling of 400334302421400 in words is "four hundred trillion, three hundred thirty-four billion, three hundred two million, four hundred twenty-one thousand, four hundred".