148387644 has 72 divisors (see below), whose sum is σ = 396548880. Its totient is φ = 46656000.

The previous prime is 148387639. The next prime is 148387661. The reversal of 148387644 is 446783841.

148387644 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 148387644.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 274014 + ... + 274554.

Almost surely, 2^148387644 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 148387644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (198274440).

148387644 is an abundant number, since it is smaller than the sum of its proper divisors (248161236).

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

148387644 is a wasteful number, since it uses less digits than its factorization.

148387644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 971 (or 966 counting only the distinct ones).

The product of its digits is 516096, while the sum is 45.

The square root of 148387644 is about 12181.4467121110. The cubic root of 148387644 is about 529.4186624548.

The spelling of 148387644 in words is "one hundred forty-eight million, three hundred eighty-seven thousand, six hundred forty-four".