148623440 has 40 divisors (see below), whose sum is σ = 394915200. Its totient is φ = 50956416.

The previous prime is 148623421. The next prime is 148623443. The reversal of 148623440 is 44326841.

148623440 is digitally balanced in base 3, because in such base 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 (40).

It is a junction number, because it is equal to n+sod(n) for n = 148623397 and 148623406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148623443) 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, 132140 + ... + 133259.

It is an arithmetic number, because the mean of its divisors is an integer number (9872880).

Almost surely, 2^148623440 is an apocalyptic number.

148623440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

148623440 is an abundant number, since it is smaller than the sum of its proper divisors (246291760).

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

148623440 is a wasteful number, since it uses less digits than its factorization.

148623440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265419 (or 265413 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 32.

The square root of 148623440 is about 12191.1213594156. The cubic root of 148623440 is about 529.6989390214.

The spelling of 148623440 in words is "one hundred forty-eight million, six hundred twenty-three thousand, four hundred forty".