4020000204400 has 60 divisors (see below), whose sum is σ = 9659371398064. Its totient is φ = 1607780160000.

The previous prime is 4020000204371. The next prime is 4020000204427. The reversal of 4020000204400 is 44020000204.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2256820 + ... + 3623980.

Almost surely, 2^{4020000204400} is an apocalyptic number.

4020000204400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4020000204400 is an abundant number, since it is smaller than the sum of its proper divisors (5639371193664).

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

4020000204400 is a wasteful number, since it uses less digits than its factorization.

4020000204400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1374530 (or 1374519 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

Adding to 4020000204400 its reverse (44020000204), we get a palindrome (4064020204604).

The spelling of 4020000204400 in words is "four trillion, twenty billion, two hundred four thousand, four hundred".