4001145402 has 32 divisors (see below), whose sum is σ = 8030825280. Its totient is φ = 1328970240.

The previous prime is 4001145373. The next prime is 4001145427. The reversal of 4001145402 is 2045411004.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3416277 + ... + 3417447.

It is an arithmetic number, because the mean of its divisors is an integer number (250963290).

Almost surely, 2^4001145402 is an apocalyptic number.

4001145402 is an abundant number, since it is smaller than the sum of its proper divisors (4029679878).

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

4001145402 is a wasteful number, since it uses less digits than its factorization.

4001145402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2718.

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

The square root of 4001145402 is about 63254.6077531116. The cubic root of 4001145402 is about 1587.5525552031.

Adding to 4001145402 its reverse (2045411004), we get a palindrome (6046556406).

The spelling of 4001145402 in words is "four billion, one million, one hundred forty-five thousand, four hundred two".