1000042400340 has 48 divisors (see below), whose sum is σ = 3111243024960. Its totient is φ = 266677973280.

The previous prime is 1000042400323. The next prime is 1000042400347. The reversal of 1000042400340 is 430042400001.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000042400347) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 925964646 + ... + 925965725.

It is an arithmetic number, because the mean of its divisors is an integer number (64817563020).

Almost surely, 2^{1000042400340} is an apocalyptic number.

1000042400340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1000042400340 is an abundant number, since it is smaller than the sum of its proper divisors (2111200624620).

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

1000042400340 is a wasteful number, since it uses less digits than its factorization.

1000042400340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1851930389 (or 1851930381 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 1000042400340 its reverse (430042400001), we get a palindrome (1430084800341).

The spelling of 1000042400340 in words is "one trillion, forty-two million, four hundred thousand, three hundred forty".