144401790 has 32 divisors (see below), whose sum is σ = 373224096. Its totient is φ = 35544960.

The previous prime is 144401749. The next prime is 144401801. The reversal of 144401790 is 97104441.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent 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, 184741 + ... + 185520.

It is an arithmetic number, because the mean of its divisors is an integer number (11663253).

Almost surely, 2^144401790 is an apocalyptic number.

144401790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

144401790 is an abundant number, since it is smaller than the sum of its proper divisors (228822306).

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

144401790 is a wasteful number, since it uses less digits than its factorization.

144401790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370284.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 144401790 is about 12016.7295883697. The cubic root of 144401790 is about 524.6353204383.

The spelling of 144401790 in words is "one hundred forty-four million, four hundred one thousand, seven hundred ninety".