150206440 has 32 divisors (see below), whose sum is σ = 341457480. Its totient is φ = 59461632.

The previous prime is 150206437. The next prime is 150206447. The reversal of 150206440 is 44602051.

It can be written as a sum of positive squares in 4 ways, for example, as 135629316 + 14577124 = 11646^2 + 3818^2 .

It is not an unprimeable number, because it can be changed into a prime (150206447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15477 + ... + 23236.

Almost surely, 2^150206440 is an apocalyptic number.

150206440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

150206440 is an abundant number, since it is smaller than the sum of its proper divisors (191251040).

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

150206440 is a wasteful number, since it uses less digits than its factorization.

150206440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38821 (or 38817 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 150206440 is about 12255.8736938661. The cubic root of 150206440 is about 531.5729231161.

Adding to 150206440 its reverse (44602051), we get a palindrome (194808491).

The spelling of 150206440 in words is "one hundred fifty million, two hundred six thousand, four hundred forty".