4032400142440 has 16 divisors (see below), whose sum is σ = 9072900320580. Its totient is φ = 1612960056960.

The previous prime is 4032400142431. The next prime is 4032400142461. The reversal of 4032400142440 is 442410042304.

It can be written as a sum of positive squares in 2 ways, for example, as 3719983983076 + 312416159364 = 1928726^2 + 558942^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4032400142399 and 4032400142408.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50405001741 + ... + 50405001820.

Almost surely, 2^{4032400142440} is an apocalyptic number.

4032400142440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4032400142440 is an abundant number, since it is smaller than the sum of its proper divisors (5040500178140).

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

4032400142440 is a wasteful number, since it uses less digits than its factorization.

4032400142440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100810003572 (or 100810003568 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 4032400142440 its reverse (442410042304), we get a palindrome (4474810184744).

The spelling of 4032400142440 in words is "four trillion, thirty-two billion, four hundred million, one hundred forty-two thousand, four hundred forty".