147900040 has 32 divisors (see below), whose sum is σ = 333126360. Its totient is φ = 59097600.

The previous prime is 147900037. The next prime is 147900041. The reversal of 147900040 is 40009741.

It can be written as a sum of positive squares in 4 ways, for example, as 137311524 + 10588516 = 11718^2 + 3254^2 .

It is a junction number, because it is equal to n+sod(n) for n = 147899978 and 147900014.

It is not an unprimeable number, because it can be changed into a prime (147900041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63700 + ... + 65980.

Almost surely, 2^147900040 is an apocalyptic number.

147900040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

147900040 is an abundant number, since it is smaller than the sum of its proper divisors (185226320).

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

147900040 is a wasteful number, since it uses less digits than its factorization.

147900040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3913 (or 3909 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 147900040 is about 12161.4160359721. The cubic root of 147900040 is about 528.8381335874.

Adding to 147900040 its reverse (40009741), we get a palindrome (187909781).

The spelling of 147900040 in words is "one hundred forty-seven million, nine hundred thousand, forty".