142062440 has 64 divisors (see below), whose sum is σ = 346021200. Its totient is φ = 52180992.

The previous prime is 142062439. The next prime is 142062451. The reversal of 142062440 is 44260241.

It can be written as a sum of positive squares in 8 ways, for example, as 71132356 + 70930084 = 8434^2 + 8422^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 118484 + ... + 119676.

Almost surely, 2^142062440 is an apocalyptic number.

142062440 is a gapful number since it is divisible by the number (10) 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 142062440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (173010600).

142062440 is an abundant number, since it is smaller than the sum of its proper divisors (203958760).

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

142062440 is a wasteful number, since it uses less digits than its factorization.

142062440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1446 (or 1442 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 142062440 is about 11918.9949240697. The cubic root of 142062440 is about 521.7868019525.

The spelling of 142062440 in words is "one hundred forty-two million, sixty-two thousand, four hundred forty".