400351244430 has 16 divisors (see below), whose sum is σ = 960842986704. Its totient is φ = 106760331840.

The previous prime is 400351244429. The next prime is 400351244497. The reversal of 400351244430 is 34442153004.

It is a super-2 number, since 2×400351244430² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 13345041481 = 400351244430 / (4 + 0 + 0 + 3 + 5 + 1 + 2 + 4 + 4 + 4 + 3 + 0).

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, 6672520711 + ... + 6672520770.

It is an arithmetic number, because the mean of its divisors is an integer number (60052686669).

Almost surely, 2^400351244430 is an apocalyptic number.

400351244430 is an abundant number, since it is smaller than the sum of its proper divisors (560491742274).

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

400351244430 is a wasteful number, since it uses less digits than its factorization.

400351244430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13345041491.

The product of its (nonzero) digits is 23040, while the sum is 30.

Adding to 400351244430 its reverse (34442153004), we get a palindrome (434793397434).

The spelling of 400351244430 in words is "four hundred billion, three hundred fifty-one million, two hundred forty-four thousand, four hundred thirty".