148409688 has 32 divisors (see below), whose sum is σ = 424028160. Its totient is φ = 42402720.

The previous prime is 148409687. The next prime is 148409717. The reversal of 148409688 is 886904841.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148409687) 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, 441528 + ... + 441863.

It is an arithmetic number, because the mean of its divisors is an integer number (13250880).

Almost surely, 2^148409688 is an apocalyptic number.

It is an amenable number.

148409688 is an abundant number, since it is smaller than the sum of its proper divisors (275618472).

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

148409688 is a wasteful number, since it uses less digits than its factorization.

148409688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 883407 (or 883403 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 48.

The square root of 148409688 is about 12182.3514971454. The cubic root of 148409688 is about 529.4448774118. Note that the first 3 decimals are identical.

The spelling of 148409688 in words is "one hundred forty-eight million, four hundred nine thousand, six hundred eighty-eight".