149240390 has 32 divisors (see below), whose sum is σ = 292027680. Its totient is φ = 54584064.

The previous prime is 149240389. The next prime is 149240407. The reversal of 149240390 is 93042941.

It is a happy number.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 8546 + ... + 19274.

It is an arithmetic number, because the mean of its divisors is an integer number (9125865).

Almost surely, 2^149240390 is an apocalyptic number.

149240390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

149240390 is a deficient number, since it is larger than the sum of its proper divisors (142787290).

149240390 is a wasteful number, since it uses less digits than its factorization.

149240390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10856.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 149240390 is about 12216.3984054221. The cubic root of 149240390 is about 530.4308706980.

The spelling of 149240390 in words is "one hundred forty-nine million, two hundred forty thousand, three hundred ninety".