142481808 has 240 divisors, whose sum is σ = 488540160. Its totient is φ = 39626496.

The previous prime is 142481789. The next prime is 142481819. The reversal of 142481808 is 808184241.

It is a happy number.

It is a super-2 number, since 2×142481808² = 40602131221897728, which contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1121841 + ... + 1121967.

It is an arithmetic number, because the mean of its divisors is an integer number (2035584).

Almost surely, 2^142481808 is an apocalyptic number.

142481808 is a gapful number since it is divisible by the number (18) 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 142481808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (244270080).

142481808 is an abundant number, since it is smaller than the sum of its proper divisors (346058352).

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

142481808 is a wasteful number, since it uses less digits than its factorization.

142481808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211 (or 192 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 36.

The square root of 142481808 is about 11936.5743829626. The cubic root of 142481808 is about 522.2997353748.

The spelling of 142481808 in words is "one hundred forty-two million, four hundred eighty-one thousand, eight hundred eight".