148071440 has 40 divisors (see below), whose sum is σ = 375565248. Its totient is φ = 53843840.

The previous prime is 148071437. The next prime is 148071457. The reversal of 148071440 is 44170841.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83252 + ... + 85011.

Almost surely, 2^148071440 is an apocalyptic number.

148071440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

148071440 is an abundant number, since it is smaller than the sum of its proper divisors (227493808).

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

148071440 is a wasteful number, since it uses less digits than its factorization.

148071440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168287 (or 168281 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 29.

The square root of 148071440 is about 12168.4608722714. The cubic root of 148071440 is about 529.0423432765.

The spelling of 148071440 in words is "one hundred forty-eight million, seventy-one thousand, four hundred forty".