1013400344 has 32 divisors (see below), whose sum is σ = 2080976400. Its totient is φ = 458833920.

The previous prime is 1013400329. The next prime is 1013400361. The reversal of 1013400344 is 4430043101.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 212 + ... + 45020.

Almost surely, 2^1013400344 is an apocalyptic number.

It is an amenable number.

1013400344 is an abundant number, since it is smaller than the sum of its proper divisors (1067576056).

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

1013400344 is a wasteful number, since it uses less digits than its factorization.

1013400344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45083 (or 45079 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1013400344 is about 31833.9495507548. The cubic root of 1013400344 is about 1004.4469764202.

Adding to 1013400344 its reverse (4430043101), we get a palindrome (5443443445).

The spelling of 1013400344 in words is "one billion, thirteen million, four hundred thousand, three hundred forty-four".