45143340 has 48 divisors (see below), whose sum is σ = 137894400. Its totient is φ = 10943680.

The previous prime is 45143323. The next prime is 45143341. The reversal of 45143340 is 4334154.

It is a super-2 number, since 2×45143340² = 4075842292711200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 45143340.

It is not an unprimeable number, because it can be changed into a prime (45143341) 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, 33540 + ... + 34859.

It is an arithmetic number, because the mean of its divisors is an integer number (2872800).

Almost surely, 2^45143340 is an apocalyptic number.

It is an amenable number.

45143340 is an abundant number, since it is smaller than the sum of its proper divisors (92751060).

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

45143340 is a wasteful number, since it uses less digits than its factorization.

45143340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68422 (or 68420 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 45143340 is about 6718.8793708475. The cubic root of 45143340 is about 356.0665931898.

Adding to 45143340 its reverse (4334154), we get a palindrome (49477494).

The spelling of 45143340 in words is "forty-five million, one hundred forty-three thousand, three hundred forty".