142401072 has 80 divisors (see below), whose sum is σ = 403152768. Its totient is φ = 42954240.

The previous prime is 142401071. The next prime is 142401097. The reversal of 142401072 is 270104241.

It is a happy number.

142401072 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (142401071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 148948 + ... + 149900.

Almost surely, 2^142401072 is an apocalyptic number.

142401072 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 142401072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (201576384).

142401072 is an abundant number, since it is smaller than the sum of its proper divisors (260751696).

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

142401072 is a wasteful number, since it uses less digits than its factorization.

142401072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1258 (or 1252 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 142401072 is about 11933.1920289586. The cubic root of 142401072 is about 522.2010646291.

The spelling of 142401072 in words is "one hundred forty-two million, four hundred one thousand, seventy-two".