149068840 has 16 divisors (see below), whose sum is σ = 335404980. Its totient is φ = 59627520.

The previous prime is 149068837. The next prime is 149068849. The reversal of 149068840 is 48860941.

It can be written as a sum of positive squares in 2 ways, for example, as 140991876 + 8076964 = 11874^2 + 2842^2 .

It is a Harshad number since it is a multiple of its sum of digits (40), and also a Moran number because the ratio is a prime number: 3726721 = 149068840 / (1 + 4 + 9 + 0 + 6 + 8 + 8 + 4 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 149068793 and 149068802.

It is not an unprimeable number, because it can be changed into a prime (149068849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1863321 + ... + 1863400.

Almost surely, 2^149068840 is an apocalyptic number.

149068840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

149068840 is an abundant number, since it is smaller than the sum of its proper divisors (186336140).

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

149068840 is a wasteful number, since it uses less digits than its factorization.

149068840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3726732 (or 3726728 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 40.

The square root of 149068840 is about 12209.3750863834. The cubic root of 149068840 is about 530.2275515112.

The spelling of 149068840 in words is "one hundred forty-nine million, sixty-eight thousand, eight hundred forty".