145440333240 has 64 divisors (see below), whose sum is σ = 461986947360. Its totient is φ = 36502671360.

The previous prime is 145440333209. The next prime is 145440333253. The reversal of 145440333240 is 42333044541.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35645101 + ... + 35649180.

Almost surely, 2^145440333240 is an apocalyptic number.

145440333240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145440333240 is an abundant number, since it is smaller than the sum of its proper divisors (316546614120).

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

145440333240 is a wasteful number, since it uses less digits than its factorization.

145440333240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71294312 (or 71294308 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 33.

Adding to 145440333240 its reverse (42333044541), we get a palindrome (187773377781).

The spelling of 145440333240 in words is "one hundred forty-five billion, four hundred forty million, three hundred thirty-three thousand, two hundred forty".