149039280 has 120 divisors (see below), whose sum is σ = 539059248. Its totient is φ = 36684288.

The previous prime is 149039279. The next prime is 149039281. The reversal of 149039280 is 82930941.

149039280 is a `hidden beast` number, since 1 + 490 + 3 + 92 + 80 = 666.

It is an interprime number because it is at equal distance from previous prime (149039279) and next prime (149039281).

It is a tau number, because it is divible by the number of its divisors (120).

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

It is not an unprimeable number, because it can be changed into a prime (149039281) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1399 + ... + 17321.

Almost surely, 2^149039280 is an apocalyptic number.

149039280 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 149039280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (269529624).

149039280 is an abundant number, since it is smaller than the sum of its proper divisors (390019968).

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

149039280 is a wasteful number, since it uses less digits than its factorization.

149039280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15955 (or 15946 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 149039280 is about 12208.1644811986. The cubic root of 149039280 is about 530.1925015693.

The spelling of 149039280 in words is "one hundred forty-nine million, thirty-nine thousand, two hundred eighty".