144806940 has 60 divisors (see below), whose sum is σ = 454269816. Its totient is φ = 38614752.

The previous prime is 144806939. The next prime is 144806951. The reversal of 144806940 is 49608441.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 144806895 and 144806904.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 43074 + ... + 46313.

Almost surely, 2^144806940 is an apocalyptic number.

144806940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144806940 is an abundant number, since it is smaller than the sum of its proper divisors (309462876).

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

144806940 is a wasteful number, since it uses less digits than its factorization.

144806940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89408 (or 89397 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 144806940 is about 12033.5755284953. The cubic root of 144806940 is about 525.1255210075.

The spelling of 144806940 in words is "one hundred forty-four million, eight hundred six thousand, nine hundred forty".