142078464 has 120 divisors (see below), whose sum is σ = 447484752. Its totient is φ = 43038720.

The previous prime is 142078463. The next prime is 142078471. The reversal of 142078464 is 464870241.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (142078463) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49287 + ... + 52089.

Almost surely, 2^142078464 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142078464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (223742376).

142078464 is an abundant number, since it is smaller than the sum of its proper divisors (305406288).

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

142078464 is a wasteful number, since it uses less digits than its factorization.

142078464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2838 (or 2819 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 36.

The square root of 142078464 is about 11919.6671094456. The cubic root of 142078464 is about 521.8064196111.

The spelling of 142078464 in words is "one hundred forty-two million, seventy-eight thousand, four hundred sixty-four".