1145202402 has 64 divisors (see below), whose sum is σ = 2437776000. Its totient is φ = 358030848.

The previous prime is 1145202397. The next prime is 1145202439. The reversal of 1145202402 is 2042025411.

It is a super-2 number, since 2×1145202402² = 2622977083093139208, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2012374 + ... + 2012942.

It is an arithmetic number, because the mean of its divisors is an integer number (38090250).

Almost surely, 2^1145202402 is an apocalyptic number.

1145202402 is an abundant number, since it is smaller than the sum of its proper divisors (1292573598).

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

1145202402 is a wasteful number, since it uses less digits than its factorization.

1145202402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 915.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 1145202402 is about 33840.8392626424. The cubic root of 1145202402 is about 1046.2305968547.

Adding to 1145202402 its reverse (2042025411), we get a palindrome (3187227813).

The spelling of 1145202402 in words is "one billion, one hundred forty-five million, two hundred two thousand, four hundred two".