149642280 has 48 divisors (see below), whose sum is σ = 486338580. Its totient is φ = 39904512.

The previous prime is 149642263. The next prime is 149642287. The reversal of 149642280 is 82246941.

149642280 is a `hidden beast` number, since 1 + 4 + 9 + 642 + 2 + 8 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 132848676 + 16793604 = 11526^2 + 4098^2 .

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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 (149642287) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 207477 + ... + 208196.

Almost surely, 2^149642280 is an apocalyptic number.

149642280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

149642280 is an abundant number, since it is smaller than the sum of its proper divisors (336696300).

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

149642280 is a wasteful number, since it uses less digits than its factorization.

149642280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415690 (or 415683 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 149642280 is about 12232.8361388519. The cubic root of 149642280 is about 530.9065770294.

The spelling of 149642280 in words is "one hundred forty-nine million, six hundred forty-two thousand, two hundred eighty".