142928378 has 16 divisors (see below), whose sum is σ = 220257576. Its totient is φ = 69519360.

The previous prime is 142928377. The next prime is 142928411. The reversal of 142928378 is 873829241.

142928378 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 124925329 + 18003049 = 11177^2 + 4243^2 .

It is a super-3 number, since 3×142928378³ (a number of 25 digits) contains 333 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (142928377) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28250 + ... + 32922.

Almost surely, 2^142928378 is an apocalyptic number.

142928378 is a deficient number, since it is larger than the sum of its proper divisors (77329198).

142928378 is a wasteful number, since it uses less digits than its factorization.

142928378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5089.

The product of its digits is 193536, while the sum is 44.

The square root of 142928378 is about 11955.2657017734. The cubic root of 142928378 is about 522.8448345245.

The spelling of 142928378 in words is "one hundred forty-two million, nine hundred twenty-eight thousand, three hundred seventy-eight".