400530030545 has 8 divisors (see below), whose sum is σ = 480653744424. Its totient is φ = 320412219264.

The previous prime is 400530030541. The next prime is 400530030547. The reversal of 400530030545 is 545030035004.

It can be written as a sum of positive squares in 4 ways, for example, as 137480033089 + 263049997456 = 370783^2 + 512884^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 400530030545 - 2² = 400530030541 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (400530030541) 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, 1324964 + ... + 1598933.

It is an arithmetic number, because the mean of its divisors is an integer number (60081718053).

Almost surely, 2^400530030545 is an apocalyptic number.

It is an amenable number.

400530030545 is a deficient number, since it is larger than the sum of its proper divisors (80123713879).

400530030545 is a wasteful number, since it uses less digits than its factorization.

400530030545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2951299.

The product of its (nonzero) digits is 18000, while the sum is 29.

Adding to 400530030545 its reverse (545030035004), we get a palindrome (945560065549).

The spelling of 400530030545 in words is "four hundred billion, five hundred thirty million, thirty thousand, five hundred forty-five".