147442740 has 48 divisors (see below), whose sum is σ = 417493440. Its totient is φ = 38874880.

The previous prime is 147442709. The next prime is 147442741. The reversal of 147442740 is 47244741.

It is a happy number.

147442740 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147442741) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8466 + ... + 19145.

It is an arithmetic number, because the mean of its divisors is an integer number (8697780).

Almost surely, 2^147442740 is an apocalyptic number.

147442740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

147442740 is an abundant number, since it is smaller than the sum of its proper divisors (270050700).

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

147442740 is a wasteful number, since it uses less digits than its factorization.

147442740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27712 (or 27710 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 33.

The square root of 147442740 is about 12142.6002157693. The cubic root of 147442740 is about 528.2925232824.

The spelling of 147442740 in words is "one hundred forty-seven million, four hundred forty-two thousand, seven hundred forty".