149240 has 64 divisors (see below), whose sum is σ = 423360. Its totient is φ = 46080.

The previous prime is 149239. The next prime is 149249. The reversal of 149240 is 42941.

149240 = T₆₄ + T₆₅ + ... + T₁₀₄.

149240 = 143² + 144² + ... + 149².

149240 is nontrivially palindromic in base 9.

149240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3620 + ... + 3660.

It is an arithmetic number, because the mean of its divisors is an integer number (6615).

2¹⁴⁹²⁴⁰ is an apocalyptic number.

149240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 149240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (211680).

149240 is an abundant number, since it is smaller than the sum of its proper divisors (274120).

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

149240 is a wasteful number, since it uses less digits than its factorization.

149240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72 (or 68 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 149240 is about 386.3159328840. The cubic root of 149240 is about 53.0430408651.

The spelling of 149240 in words is "one hundred forty-nine thousand, two hundred forty".