142498440 has 320 divisors, whose sum is σ = 561749760. Its totient is φ = 31726080.

The previous prime is 142498439. The next prime is 142498457. The reversal of 142498440 is 44894241.

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

It is a junction number, because it is equal to n+sod(n) for n = 142498395 and 142498404.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1383429 + ... + 1383531.

It is an arithmetic number, because the mean of its divisors is an integer number (1755468).

Almost surely, 2^142498440 is an apocalyptic number.

142498440 is a gapful number since it is divisible by the number (10) 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 142498440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (280874880).

142498440 is an abundant number, since it is smaller than the sum of its proper divisors (419251320).

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

142498440 is a wasteful number, since it uses less digits than its factorization.

142498440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194 (or 181 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The square root of 142498440 is about 11937.2710449248. The cubic root of 142498440 is about 522.3200573872.

The spelling of 142498440 in words is "one hundred forty-two million, four hundred ninety-eight thousand, four hundred forty".