1340402100 has 36 divisors (see below), whose sum is σ = 3878230944. Its totient is φ = 357440480.

The previous prime is 1340402093. The next prime is 1340402143. The reversal of 1340402100 is 12040431.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1340402100.

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, 2233704 + ... + 2234303.

Almost surely, 2^1340402100 is an apocalyptic number.

1340402100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1340402100 is an abundant number, since it is smaller than the sum of its proper divisors (2537828844).

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

1340402100 is a wasteful number, since it uses less digits than its factorization.

1340402100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4468024 (or 4468017 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 1340402100 is about 36611.5022909468. The cubic root of 1340402100 is about 1102.5840352232.

Adding to 1340402100 its reverse (12040431), we get a palindrome (1352442531).

The spelling of 1340402100 in words is "one billion, three hundred forty million, four hundred two thousand, one hundred".