1040120402 has 8 divisors (see below), whose sum is σ = 1561400496. Its totient is φ = 519653572.

The previous prime is 1040120369. The next prime is 1040120423. The reversal of 1040120402 is 2040210401.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 200108 + ... + 205239.

It is an arithmetic number, because the mean of its divisors is an integer number (195175062).

Almost surely, 2^1040120402 is an apocalyptic number.

1040120402 is a deficient number, since it is larger than the sum of its proper divisors (521280094).

1040120402 is a wasteful number, since it uses less digits than its factorization.

1040120402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406632.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 1040120402 is about 32250.8976929325. The cubic root of 1040120402 is about 1013.1985005225.

Adding to 1040120402 its reverse (2040210401), we get a palindrome (3080330803).

It can be divided in two parts, 10401 and 20402, that added together give a palindrome (30803).

The spelling of 1040120402 in words is "one billion, forty million, one hundred twenty thousand, four hundred two".