152244640 has 48 divisors (see below), whose sum is σ = 369413352. Its totient is φ = 59249664.

The previous prime is 152244637. The next prime is 152244643. The reversal of 152244640 is 46442251.

It is an interprime number because it is at equal distance from previous prime (152244637) and next prime (152244643).

It can be written as a sum of positive squares in 4 ways, for example, as 146991376 + 5253264 = 12124^2 + 2292^2 .

It is a junction number, because it is equal to n+sod(n) for n = 152244599 and 152244608.

It is not an unprimeable number, because it can be changed into a prime (152244643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6939 + ... + 18778.

Almost surely, 2^152244640 is an apocalyptic number.

152244640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

152244640 is an abundant number, since it is smaller than the sum of its proper divisors (217168712).

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

152244640 is a wasteful number, since it uses less digits than its factorization.

152244640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25769 (or 25761 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 152244640 is about 12338.7454791806. The cubic root of 152244640 is about 533.9664910917.

Adding to 152244640 its reverse (46442251), we get a palindrome (198686891).

The spelling of 152244640 in words is "one hundred fifty-two million, two hundred forty-four thousand, six hundred forty".