142940490 has 64 divisors (see below), whose sum is σ = 427714560. Its totient is φ = 29701440.

The previous prime is 142940443. The next prime is 142940491. The reversal of 142940490 is 94049241.

142940490 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (142940491) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28630 + ... + 33249.

It is an arithmetic number, because the mean of its divisors is an integer number (6683040).

Almost surely, 2^142940490 is an apocalyptic number.

142940490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142940490 is an abundant number, since it is smaller than the sum of its proper divisors (284774070).

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

142940490 is a wasteful number, since it uses less digits than its factorization.

142940490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61907.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 142940490 is about 11955.7722460743. The cubic root of 142940490 is about 522.8596030351.

The spelling of 142940490 in words is "one hundred forty-two million, nine hundred forty thousand, four hundred ninety".