1340211444 has 192 divisors, whose sum is σ = 3859688448. Its totient is φ = 356428800.

The previous prime is 1340211421. The next prime is 1340211463. The reversal of 1340211444 is 4441120431.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3025087 + ... + 3025529.

It is an arithmetic number, because the mean of its divisors is an integer number (20102544).

Almost surely, 2^1340211444 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1340211444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1929844224).

1340211444 is an abundant number, since it is smaller than the sum of its proper divisors (2519477004).

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

1340211444 is a wasteful number, since it uses less digits than its factorization.

1340211444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 558 (or 556 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 1340211444 is about 36608.8984264755. The cubic root of 1340211444 is about 1102.5317563264.

Adding to 1340211444 its reverse (4441120431), we get a palindrome (5781331875).

The spelling of 1340211444 in words is "one billion, three hundred forty million, two hundred eleven thousand, four hundred forty-four".