147989440 has 28 divisors (see below), whose sum is σ = 352400616. Its totient is φ = 59195648.

The previous prime is 147989431. The next prime is 147989449. The reversal of 147989440 is 44989741.

It is an interprime number because it is at equal distance from previous prime (147989431) and next prime (147989449).

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147989449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 230914 + ... + 231553.

Almost surely, 2^147989440 is an apocalyptic number.

147989440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

147989440 is an abundant number, since it is smaller than the sum of its proper divisors (204411176).

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

147989440 is an equidigital number, since it uses as much as digits as its factorization.

147989440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462484 (or 462474 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 46.

The square root of 147989440 is about 12165.0910395278. The cubic root of 147989440 is about 528.9446663654.

The spelling of 147989440 in words is "one hundred forty-seven million, nine hundred eighty-nine thousand, four hundred forty".