142070940 has 144 divisors (see below), whose sum is σ = 474810336. Its totient is φ = 34383360.

The previous prime is 142070933. The next prime is 142070947. The reversal of 142070940 is 49070241.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (142070933) and next prime (142070947).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142070947) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 239284 + ... + 239876.

It is an arithmetic number, because the mean of its divisors is an integer number (3297294).

Almost surely, 2^142070940 is an apocalyptic number.

142070940 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 142070940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (237405168).

142070940 is an abundant number, since it is smaller than the sum of its proper divisors (332739396).

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

142070940 is a wasteful number, since it uses less digits than its factorization.

142070940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 641 (or 614 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 142070940 is about 11919.3514924261. The cubic root of 142070940 is about 521.7972084079.

The spelling of 142070940 in words is "one hundred forty-two million, seventy thousand, nine hundred forty".