144957990 has 16 divisors (see below), whose sum is σ = 347899248. Its totient is φ = 38655456.

The previous prime is 144957947. The next prime is 144957991. The reversal of 144957990 is 99759441.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144957991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2415937 + ... + 2415996.

It is an arithmetic number, because the mean of its divisors is an integer number (21743703).

Almost surely, 2^144957990 is an apocalyptic number.

144957990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

144957990 is an abundant number, since it is smaller than the sum of its proper divisors (202941258).

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

144957990 is a wasteful number, since it uses less digits than its factorization.

144957990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4831943.

The product of its (nonzero) digits is 408240, while the sum is 48.

The square root of 144957990 is about 12039.8500821231. The cubic root of 144957990 is about 525.3080459747.

The spelling of 144957990 in words is "one hundred forty-four million, nine hundred fifty-seven thousand, nine hundred ninety".