153399444 has 72 divisors (see below), whose sum is σ = 407107680. Its totient is φ = 44869440.

The previous prime is 153399431. The next prime is 153399451. The reversal of 153399444 is 444993351.

It is a junction number, because it is equal to n+sod(n) for n = 153399396 and 153399405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40287 + ... + 43929.

Almost surely, 2^153399444 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 153399444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (203553840).

153399444 is an abundant number, since it is smaller than the sum of its proper divisors (253708236).

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

153399444 is a wasteful number, since it uses less digits than its factorization.

153399444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3701 (or 3688 counting only the distinct ones).

The product of its digits is 233280, while the sum is 42.

The square root of 153399444 is about 12385.4529186461. The cubic root of 153399444 is about 535.3131703588.

The spelling of 153399444 in words is "one hundred fifty-three million, three hundred ninety-nine thousand, four hundred forty-four".