1345252398 has 128 divisors (see below), whose sum is σ = 3365784576. Its totient is φ = 349747200.

The previous prime is 1345252393. The next prime is 1345252399. The reversal of 1345252398 is 8932525431.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1345252393) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2917888 + ... + 2918348.

It is an arithmetic number, because the mean of its divisors is an integer number (26295192).

Almost surely, 2^1345252398 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1345252398, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1682892288).

1345252398 is an abundant number, since it is smaller than the sum of its proper divisors (2020532178).

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

1345252398 is a wasteful number, since it uses less digits than its factorization.

1345252398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 618.

The product of its digits is 259200, while the sum is 42.

The square root of 1345252398 is about 36677.6825603800. The cubic root of 1345252398 is about 1103.9123489670.

The spelling of 1345252398 in words is "one billion, three hundred forty-five million, two hundred fifty-two thousand, three hundred ninety-eight".