144924990 has 32 divisors (see below), whose sum is σ = 397509120. Its totient is φ = 33125664.

The previous prime is 144924961. The next prime is 144924991. The reversal of 144924990 is 99429441.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144924991) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 344850 + ... + 345269.

It is an arithmetic number, because the mean of its divisors is an integer number (12422160).

Almost surely, 2^144924990 is an apocalyptic number.

144924990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

144924990 is an abundant number, since it is smaller than the sum of its proper divisors (252584130).

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

144924990 is a wasteful number, since it uses less digits than its factorization.

144924990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 690136.

The product of its (nonzero) digits is 93312, while the sum is 42.

The square root of 144924990 is about 12038.4795551598. The cubic root of 144924990 is about 525.2681804451.

The spelling of 144924990 in words is "one hundred forty-four million, nine hundred twenty-four thousand, nine hundred ninety".