142269972 has 96 divisors (see below), whose sum is σ = 370900992. Its totient is φ = 42166656.

The previous prime is 142269947. The next prime is 142269977. The reversal of 142269972 is 279962241.

142269972 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142269977) 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, 851833 + ... + 851999.

It is an arithmetic number, because the mean of its divisors is an integer number (3863552).

Almost surely, 2^142269972 is an apocalyptic number.

142269972 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 142269972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185450496).

142269972 is an abundant number, since it is smaller than the sum of its proper divisors (228631020).

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

142269972 is a wasteful number, since it uses less digits than its factorization.

142269972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357 (or 355 counting only the distinct ones).

The product of its digits is 108864, while the sum is 42.

The square root of 142269972 is about 11927.6976822855. The cubic root of 142269972 is about 522.0407625131.

The spelling of 142269972 in words is "one hundred forty-two million, two hundred sixty-nine thousand, nine hundred seventy-two".