1342446639408 has 240 divisors, whose sum is σ = 4483620574560. Its totient is φ = 383454521856.

The previous prime is 1342446639403. The next prime is 1342446639433. The reversal of 1342446639408 is 8049366442431.

1342446639408 is a `hidden beast` number, since 1 + 3 + 4 + 244 + 6 + 6 + 394 + 0 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (1342446639403) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 121011910 + ... + 121023002.

It is an arithmetic number, because the mean of its divisors is an integer number (18681752394).

Almost surely, 2^{1342446639408} is an apocalyptic number.

1342446639408 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1342446639408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2241810287280).

1342446639408 is an abundant number, since it is smaller than the sum of its proper divisors (3141173935152).

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

1342446639408 is a wasteful number, since it uses less digits than its factorization.

1342446639408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16841 (or 16822 counting only the distinct ones).

The product of its (nonzero) digits is 11943936, while the sum is 54.

The spelling of 1342446639408 in words is "one trillion, three hundred forty-two billion, four hundred forty-six million, six hundred thirty-nine thousand, four hundred eight".