152213440 has 56 divisors (see below), whose sum is σ = 363656880. Its totient is φ = 60684288.

The previous prime is 152213419. The next prime is 152213459. The reversal of 152213440 is 44312251.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130299 + ... + 131461.

Almost surely, 2^152213440 is an apocalyptic number.

152213440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 152213440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (181828440).

152213440 is an abundant number, since it is smaller than the sum of its proper divisors (211443440).

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

152213440 is a wasteful number, since it uses less digits than its factorization.

152213440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1589 (or 1579 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 152213440 is about 12337.4811043422. The cubic root of 152213440 is about 533.9300127572.

Adding to 152213440 its reverse (44312251), we get a palindrome (196525691).

The spelling of 152213440 in words is "one hundred fifty-two million, two hundred thirteen thousand, four hundred forty".