142349040 has 120 divisors (see below), whose sum is σ = 480833808. Its totient is φ = 37739520.

The previous prime is 142349017. The next prime is 142349111. The reversal of 142349040 is 40943241.

It is a tau number, because it is divible by the number of its divisors (120).

It is a junction number, because it is equal to n+sod(n) for n = 142348995 and 142349013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 151452 + ... + 152388.

Almost surely, 2^142349040 is an apocalyptic number.

142349040 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 142349040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (240416904).

142349040 is an abundant number, since it is smaller than the sum of its proper divisors (338484768).

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

142349040 is a wasteful number, since it uses less digits than its factorization.

142349040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1167 (or 1158 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 142349040 is about 11931.0116922246. The cubic root of 142349040 is about 522.1374544436.

The spelling of 142349040 in words is "one hundred forty-two million, three hundred forty-nine thousand, forty".