149879280 has 40 divisors (see below), whose sum is σ = 464626512. Its totient is φ = 39967744.

The previous prime is 149879243. The next prime is 149879291. The reversal of 149879280 is 82978941.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 312009 + ... + 312488.

Almost surely, 2^149879280 is an apocalyptic number.

149879280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

149879280 is an abundant number, since it is smaller than the sum of its proper divisors (314747232).

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

149879280 is a wasteful number, since it uses less digits than its factorization.

149879280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 624513 (or 624507 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 48.

The square root of 149879280 is about 12242.5193485655. The cubic root of 149879280 is about 531.1867083999.

The spelling of 149879280 in words is "one hundred forty-nine million, eight hundred seventy-nine thousand, two hundred eighty".