147799440 has 120 divisors (see below), whose sum is σ = 500467968. Its totient is φ = 39087360.

The previous prime is 147799439. The next prime is 147799451. The reversal of 147799440 is 44997741.

147799440 is digitally balanced in base 2, 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 (120).

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 23 ways as a sum of consecutive naturals, for example, 93537 + ... + 95103.

Almost surely, 2^147799440 is an apocalyptic number.

147799440 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 147799440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (250233984).

147799440 is an abundant number, since it is smaller than the sum of its proper divisors (352668528).

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

147799440 is a wasteful number, since it uses less digits than its factorization.

147799440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1717 (or 1708 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 45.

The square root of 147799440 is about 12157.2793008962. The cubic root of 147799440 is about 528.7182030742.

The spelling of 147799440 in words is "one hundred forty-seven million, seven hundred ninety-nine thousand, four hundred forty".