149019240 has 32 divisors (see below), whose sum is σ = 447058080. Its totient is φ = 39738432.

The previous prime is 149019203. The next prime is 149019251. The reversal of 149019240 is 42910941.

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

It is a junction number, because it is equal to n+sod(n) for n = 149019198 and 149019207.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 620794 + ... + 621033.

It is an arithmetic number, because the mean of its divisors is an integer number (13970565).

Almost surely, 2^149019240 is an apocalyptic number.

149019240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

149019240 is an abundant number, since it is smaller than the sum of its proper divisors (298038840).

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

149019240 is a wasteful number, since it uses less digits than its factorization.

149019240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1241841 (or 1241837 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 149019240 is about 12207.3436914015. The cubic root of 149019240 is about 530.1687370647.

The spelling of 149019240 in words is "one hundred forty-nine million, nineteen thousand, two hundred forty".