4200402042440 has 32 divisors (see below), whose sum is σ = 9450965261880. Its totient is φ = 1680150031872.

The previous prime is 4200402042439. The next prime is 4200402042493. The reversal of 4200402042440 is 442402040024.

It can be written as a sum of positive squares in 4 ways, for example, as 2206110148804 + 1994291893636 = 1485298^2 + 1412194^2 .

It is a super-2 number, since 2×4200402042440² (a number of 26 digits) contains 22 as substring.

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, 9560882 + ... + 9990558.

Almost surely, 2^{4200402042440} is an apocalyptic number.

4200402042440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4200402042440 is an abundant number, since it is smaller than the sum of its proper divisors (5250563219440).

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

4200402042440 is a wasteful number, since it uses less digits than its factorization.

4200402042440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 674081 (or 674077 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 26.

Adding to 4200402042440 its reverse (442402040024), we get a palindrome (4642804082464).

The spelling of 4200402042440 in words is "four trillion, two hundred billion, four hundred two million, forty-two thousand, four hundred forty".