75220402 has 8 divisors (see below), whose sum is σ = 112906800. Its totient is φ = 37584804.

The previous prime is 75220361. The next prime is 75220421. The reversal of 75220402 is 20402257.

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, 8752 + ... + 15067.

It is an arithmetic number, because the mean of its divisors is an integer number (14113350).

Almost surely, 2^75220402 is an apocalyptic number.

75220402 is a deficient number, since it is larger than the sum of its proper divisors (37686398).

75220402 is a wasteful number, since it uses less digits than its factorization.

75220402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25400.

The product of its (nonzero) digits is 1120, while the sum is 22.

The square root of 75220402 is about 8672.9696183026. The cubic root of 75220402 is about 422.1290269789.

Adding to 75220402 its reverse (20402257), we get a palindrome (95622659).

The spelling of 75220402 in words is "seventy-five million, two hundred twenty thousand, four hundred two".