4000400430 has 32 divisors (see below), whose sum is σ = 10339497504. Its totient is φ = 984713856.

The previous prime is 4000400329. The next prime is 4000400449. The reversal of 4000400430 is 340040004.

4000400430 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5128329 + ... + 5129108.

It is an arithmetic number, because the mean of its divisors is an integer number (323109297).

Almost surely, 2^4000400430 is an apocalyptic number.

4000400430 is an abundant number, since it is smaller than the sum of its proper divisors (6339097074).

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

4000400430 is a wasteful number, since it uses less digits than its factorization.

4000400430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10257460.

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 4000400430 is about 63248.7188012532. The cubic root of 4000400430 is about 1587.4540204510.

Adding to 4000400430 its reverse (340040004), we get a palindrome (4340440434).

The spelling of 4000400430 in words is "four billion, four hundred thousand, four hundred thirty".