1345391424 has 336 divisors, whose sum is σ = 4551517440. Its totient is φ = 388177920.

The previous prime is 1345391381. The next prime is 1345391449. The reversal of 1345391424 is 4241935431.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4964409 + ... + 4964679.

Almost surely, 2^1345391424 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 1345391424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2275758720).

1345391424 is an abundant number, since it is smaller than the sum of its proper divisors (3206126016).

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

1345391424 is a wasteful number, since it uses less digits than its factorization.

1345391424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335 (or 306 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 1345391424 is about 36679.5777511138. The cubic root of 1345391424 is about 1103.9503758413.

The spelling of 1345391424 in words is "one billion, three hundred forty-five million, three hundred ninety-one thousand, four hundred twenty-four".