142294464 has 168 divisors, whose sum is σ = 454143872. Its totient is φ = 42301440.

The previous prime is 142294463. The next prime is 142294469. The reversal of 142294464 is 464492241.

It is a happy number.

142294464 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

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

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142294463) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 231822 + ... + 232434.

Almost surely, 2^142294464 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 142294464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (227071936).

142294464 is an abundant number, since it is smaller than the sum of its proper divisors (311849408).

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

142294464 is a wasteful number, since it uses less digits than its factorization.

142294464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 675 (or 662 counting only the distinct ones).

The product of its digits is 55296, while the sum is 36.

The square root of 142294464 is about 11928.7243240843. The cubic root of 142294464 is about 522.0707175077.

The spelling of 142294464 in words is "one hundred forty-two million, two hundred ninety-four thousand, four hundred sixty-four".