142928774 has 8 divisors (see below), whose sum is σ = 216474960. Its totient is φ = 70770456.

The previous prime is 142928771. The next prime is 142928783. The reversal of 142928774 is 477829241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142928771) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 346709 + ... + 347120.

It is an arithmetic number, because the mean of its divisors is an integer number (27059370).

Almost surely, 2^142928774 is an apocalyptic number.

142928774 is a deficient number, since it is larger than the sum of its proper divisors (73546186).

142928774 is a wasteful number, since it uses less digits than its factorization.

142928774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 693934.

The product of its digits is 225792, while the sum is 44.

The square root of 142928774 is about 11955.2822635018. The cubic root of 142928774 is about 522.8453173919.

It can be divided in two parts, 1429 and 28774, that added together give a palindrome (30203).

The spelling of 142928774 in words is "one hundred forty-two million, nine hundred twenty-eight thousand, seven hundred seventy-four".