142040304 has 240 divisors, whose sum is σ = 500467968. Its totient is φ = 38071296.

The previous prime is 142040303. The next prime is 142040323. The reversal of 142040304 is 403040241.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142040303) 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, 462519 + ... + 462825.

Almost surely, 2^142040304 is an apocalyptic number.

142040304 is a gapful number since it is divisible by the number (14) 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 142040304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (250233984).

142040304 is an abundant number, since it is smaller than the sum of its proper divisors (358427664).

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

142040304 is a wasteful number, since it uses less digits than its factorization.

142040304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354 (or 336 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 142040304 is about 11918.0662861053. The cubic root of 142040304 is about 521.7596991456.

Adding to 142040304 its reverse (403040241), we get a palindrome (545080545).

The spelling of 142040304 in words is "one hundred forty-two million, forty thousand, three hundred four".