149642628 has 12 divisors (see below), whose sum is σ = 349166160. Its totient is φ = 49880872.

The previous prime is 149642617. The next prime is 149642641. The reversal of 149642628 is 826246941.

149642628 is digitally balanced in base 2, base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×149642628² = 44785832229492768, which contains 22 as substring.

149642628 is strictly pandigital in base 9.

It is a self number, because there is not a number n which added to its sum of digits gives 149642628.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6235098 + ... + 6235121.

It is an arithmetic number, because the mean of its divisors is an integer number (29097180).

Almost surely, 2^149642628 is an apocalyptic number.

It is an amenable number.

149642628 is an abundant number, since it is smaller than the sum of its proper divisors (199523532).

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

149642628 is a wasteful number, since it uses less digits than its factorization.

149642628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12470226 (or 12470224 counting only the distinct ones).

The product of its digits is 165888, while the sum is 42.

The square root of 149642628 is about 12232.8503628549. The cubic root of 149642628 is about 530.9069885783.

The spelling of 149642628 in words is "one hundred forty-nine million, six hundred forty-two thousand, six hundred twenty-eight".