402130245 has 64 divisors (see below), whose sum is σ = 726681600. Its totient is φ = 188179200.

The previous prime is 402130243. The next prime is 402130247. The reversal of 402130245 is 542031204.

It is an interprime number because it is at equal distance from previous prime (402130243) and next prime (402130247).

It is not a de Polignac number, because 402130245 - 2¹ = 402130243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402130243) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1214730 + ... + 1215060.

It is an arithmetic number, because the mean of its divisors is an integer number (11354400).

Almost surely, 2^402130245 is an apocalyptic number.

It is an amenable number.

402130245 is a deficient number, since it is larger than the sum of its proper divisors (324551355).

402130245 is a wasteful number, since it uses less digits than its factorization.

402130245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 586.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 402130245 is about 20053.1854078099. The cubic root of 402130245 is about 738.1119662525. Note that the first 3 decimals are identical.

Adding to 402130245 its reverse (542031204), we get a palindrome (944161449).

The spelling of 402130245 in words is "four hundred two million, one hundred thirty thousand, two hundred forty-five".