148789440 has 224 divisors, whose sum is σ = 556320960. Its totient is φ = 37306368.

The previous prime is 148789439. The next prime is 148789477. The reversal of 148789440 is 44987841.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 146374 + ... + 147386.

Almost surely, 2^148789440 is an apocalyptic number.

148789440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 148789440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (278160480).

148789440 is an abundant number, since it is smaller than the sum of its proper divisors (407531520).

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

148789440 is a wasteful number, since it uses less digits than its factorization.

148789440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1056 (or 1040 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The square root of 148789440 is about 12197.9276928501. The cubic root of 148789440 is about 529.8960755057.

The spelling of 148789440 in words is "one hundred forty-eight million, seven hundred eighty-nine thousand, four hundred forty".