142447032 has 128 divisors (see below), whose sum is σ = 487065600. Its totient is φ = 37563264.

The previous prime is 142447031. The next prime is 142447051. The reversal of 142447032 is 230744241.

142447032 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 142446987 and 142447005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142447031) 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, 16033 + ... + 23279.

It is an arithmetic number, because the mean of its divisors is an integer number (3805200).

Almost surely, 2^142447032 is an apocalyptic number.

142447032 is a gapful number since it is divisible by the number (12) 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 142447032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (243532800).

142447032 is an abundant number, since it is smaller than the sum of its proper divisors (344618568).

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

142447032 is a wasteful number, since it uses less digits than its factorization.

142447032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7282 (or 7272 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 27.

The square root of 142447032 is about 11935.1175947286. The cubic root of 142447032 is about 522.2572387834.

The spelling of 142447032 in words is "one hundred forty-two million, four hundred forty-seven thousand, thirty-two".