150689640 has 32 divisors (see below), whose sum is σ = 452069280. Its totient is φ = 40183872.

The previous prime is 150689573. The next prime is 150689657. The reversal of 150689640 is 46986051.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 627754 + ... + 627993.

It is an arithmetic number, because the mean of its divisors is an integer number (14127165).

Almost surely, 2^150689640 is an apocalyptic number.

150689640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

150689640 is an abundant number, since it is smaller than the sum of its proper divisors (301379640).

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

150689640 is a wasteful number, since it uses less digits than its factorization.

150689640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1255761 (or 1255757 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 150689640 is about 12275.5708624895. The cubic root of 150689640 is about 532.1423196976.

The spelling of 150689640 in words is "one hundred fifty million, six hundred eighty-nine thousand, six hundred forty".