40045143450 has 96 divisors (see below), whose sum is σ = 108305568000. Its totient is φ = 9732453120.

The previous prime is 40045143431. The next prime is 40045143473. The reversal of 40045143450 is 5434154004.

It is a super-2 number, since 2×40045143450² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 24076 + ... + 284024.

It is an arithmetic number, because the mean of its divisors is an integer number (1128183000).

Almost surely, 2^40045143450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40045143450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54152784000).

40045143450 is an abundant number, since it is smaller than the sum of its proper divisors (68260424550).

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

40045143450 is a wasteful number, since it uses less digits than its factorization.

40045143450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260056 (or 260051 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

Adding to 40045143450 its reverse (5434154004), we get a palindrome (45479297454).

The spelling of 40045143450 in words is "forty billion, forty-five million, one hundred forty-three thousand, four hundred fifty".