431440152 has 64 divisors (see below), whose sum is σ = 1267176960. Its totient is φ = 120681600.

The previous prime is 431440151. The next prime is 431440153. The reversal of 431440152 is 251044134.

It is an interprime number because it is at equal distance from previous prime (431440151) and next prime (431440153).

It is a super-2 number, since 2×431440152² = 372281209515566208, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431440151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59424 + ... + 66287.

It is an arithmetic number, because the mean of its divisors is an integer number (19799640).

Almost surely, 2^431440152 is an apocalyptic number.

It is an amenable number.

431440152 is an abundant number, since it is smaller than the sum of its proper divisors (835736808).

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

431440152 is a wasteful number, since it uses less digits than its factorization.

431440152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125744 (or 125740 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 431440152 is about 20771.1374748712. The cubic root of 431440152 is about 755.6259312315.

Adding to 431440152 its reverse (251044134), we get a palindrome (682484286).

It can be divided in two parts, 4314401 and 52, that added together give a triangular number (4314453 = T₂₉₃₇).

The spelling of 431440152 in words is "four hundred thirty-one million, four hundred forty thousand, one hundred fifty-two".