142074240 has 384 divisors, whose sum is σ = 583407360. Its totient is φ = 28569600.

The previous prime is 142074227. The next prime is 142074241. The reversal of 142074240 is 42470241.

It is a tau number, because it is divible by the number of its divisors (384).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 142074240.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142074241) 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, 4583025 + ... + 4583055.

It is an arithmetic number, because the mean of its divisors is an integer number (1519290).

Almost surely, 2^142074240 is an apocalyptic number.

142074240 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 142074240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (291703680).

142074240 is an abundant number, since it is smaller than the sum of its proper divisors (441333120).

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

142074240 is a wasteful number, since it uses less digits than its factorization.

142074240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102 (or 59 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 24.

The square root of 142074240 is about 11919.4899219723. The cubic root of 142074240 is about 521.8012484494.

The spelling of 142074240 in words is "one hundred forty-two million, seventy-four thousand, two hundred forty".