144732490 has 32 divisors (see below), whose sum is σ = 307344384. Its totient is φ = 48021120.

The previous prime is 144732479. The next prime is 144732517. The reversal of 144732490 is 94237441.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31179 + ... + 35518.

It is an arithmetic number, because the mean of its divisors is an integer number (9604512).

Almost surely, 2^144732490 is an apocalyptic number.

144732490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

144732490 is an abundant number, since it is smaller than the sum of its proper divisors (162611894).

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

144732490 is a wasteful number, since it uses less digits than its factorization.

144732490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66742.

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 144732490 is about 12030.4817027416. The cubic root of 144732490 is about 525.0355108255.

The spelling of 144732490 in words is "one hundred forty-four million, seven hundred thirty-two thousand, four hundred ninety".