1042340204400 has 120 divisors (see below), whose sum is σ = 3642505269504. Its totient is φ = 252688531200.

The previous prime is 1042340204363. The next prime is 1042340204417. The reversal of 1042340204400 is 44020432401.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39469384 + ... + 39495783.

Almost surely, 2^{1042340204400} is an apocalyptic number.

1042340204400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1042340204400 is an abundant number, since it is smaller than the sum of its proper divisors (2600165065104).

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

1042340204400 is a wasteful number, since it uses less digits than its factorization.

1042340204400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78965199 (or 78965188 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 1042340204400 its reverse (44020432401), we get a palindrome (1086360636801).

The spelling of 1042340204400 in words is "one trillion, forty-two billion, three hundred forty million, two hundred four thousand, four hundred".