142236490 has 32 divisors (see below), whose sum is σ = 281797056. Its totient is φ = 51260160.

The previous prime is 142236469. The next prime is 142236499. The reversal of 142236490 is 94632241.

It is a happy number.

142236490 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (142236499) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6709 + ... + 18151.

It is an arithmetic number, because the mean of its divisors is an integer number (8806158).

Almost surely, 2^142236490 is an apocalyptic number.

142236490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142236490 is a deficient number, since it is larger than the sum of its proper divisors (139560566).

142236490 is a wasteful number, since it uses less digits than its factorization.

142236490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11574.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 142236490 is about 11926.2940597656. The cubic root of 142236490 is about 521.9998067164. Note that the first 3 decimals are identical.

It can be divided in two parts, 142 and 236490, that added together give a palindrome (236632).

The spelling of 142236490 in words is "one hundred forty-two million, two hundred thirty-six thousand, four hundred ninety".