147263440 has 40 divisors (see below), whose sum is σ = 342969120. Its totient is φ = 58805376.

The previous prime is 147263399. The next prime is 147263461. The reversal of 147263440 is 44362741.

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

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 61791 + ... + 64129.

It is an arithmetic number, because the mean of its divisors is an integer number (8574228).

Almost surely, 2^147263440 is an apocalyptic number.

147263440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

147263440 is an abundant number, since it is smaller than the sum of its proper divisors (195705680).

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

147263440 is a wasteful number, since it uses less digits than its factorization.

147263440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3139 (or 3133 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 31.

The square root of 147263440 is about 12135.2148724281. The cubic root of 147263440 is about 528.0782903497.

The spelling of 147263440 in words is "one hundred forty-seven million, two hundred sixty-three thousand, four hundred forty".