149630840 has 32 divisors (see below), whose sum is σ = 339768000. Its totient is φ = 59301504.

The previous prime is 149630813. The next prime is 149630843. The reversal of 149630840 is 48036941.

It is a self number, because there is not a number n which added to its sum of digits gives 149630840.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149630843) 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, 12800 + ... + 21519.

It is an arithmetic number, because the mean of its divisors is an integer number (10617750).

Almost surely, 2^149630840 is an apocalyptic number.

149630840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

149630840 is an abundant number, since it is smaller than the sum of its proper divisors (190137160).

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

149630840 is a wasteful number, since it uses less digits than its factorization.

149630840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34439 (or 34435 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 149630840 is about 12232.3685359786. The cubic root of 149630840 is about 530.8930475955.

The spelling of 149630840 in words is "one hundred forty-nine million, six hundred thirty thousand, eight hundred forty".