148785840 has 240 divisors, whose sum is σ = 582873408. Its totient is φ = 33306624.

The previous prime is 148785817. The next prime is 148785851. The reversal of 148785840 is 48587841.

It is a tau number, because it is divible by the number of its divisors (240).

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 266842 + ... + 267398.

Almost surely, 2^148785840 is an apocalyptic number.

148785840 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 148785840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (291436704).

148785840 is an abundant number, since it is smaller than the sum of its proper divisors (434087568).

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

148785840 is a wasteful number, since it uses less digits than its factorization.

148785840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636 (or 627 counting only the distinct ones).

The product of its (nonzero) digits is 286720, while the sum is 45.

The square root of 148785840 is about 12197.7801259082. The cubic root of 148785840 is about 529.8918018125.

The spelling of 148785840 in words is "one hundred forty-eight million, seven hundred eighty-five thousand, eight hundred forty".