1623255396 has 96 divisors (see below), whose sum is σ = 4518339840. Its totient is φ = 443756544.

The previous prime is 1623255391. The next prime is 1623255397. The reversal of 1623255396 is 6935523261.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (1623255391) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 272320 + ... + 278216.

It is an arithmetic number, because the mean of its divisors is an integer number (47066040).

Almost surely, 2^1623255396 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 1623255396, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2259169920).

1623255396 is an abundant number, since it is smaller than the sum of its proper divisors (2895084444).

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

1623255396 is a wasteful number, since it uses less digits than its factorization.

1623255396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6053 (or 6051 counting only the distinct ones).

The product of its digits is 291600, while the sum is 42.

The square root of 1623255396 is about 40289.6437810016. The cubic root of 1623255396 is about 1175.2464600857.

The spelling of 1623255396 in words is "one billion, six hundred twenty-three million, two hundred fifty-five thousand, three hundred ninety-six".