147952440 has 64 divisors (see below), whose sum is σ = 493178400. Its totient is φ = 39453696.

The previous prime is 147952439. The next prime is 147952447. The reversal of 147952440 is 44259741.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 147952395 and 147952404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147952447) 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, 67417 + ... + 69576.

Almost surely, 2^147952440 is an apocalyptic number.

147952440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

147952440 is an abundant number, since it is smaller than the sum of its proper divisors (345225960).

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

147952440 is a wasteful number, since it uses less digits than its factorization.

147952440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137013 (or 137003 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 147952440 is about 12163.5701995755. The cubic root of 147952440 is about 528.9005808236.

The spelling of 147952440 in words is "one hundred forty-seven million, nine hundred fifty-two thousand, four hundred forty".