4220729402 has 8 divisors (see below), whose sum is σ = 6606359136. Its totient is φ = 2018609692.

The previous prime is 4220729393. The next prime is 4220729411. The reversal of 4220729402 is 2049270224.

It is an interprime number because it is at equal distance from previous prime (4220729393) and next prime (4220729411).

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, 45877448 + ... + 45877539.

It is an arithmetic number, because the mean of its divisors is an integer number (825794892).

Almost surely, 2^4220729402 is an apocalyptic number.

4220729402 is a deficient number, since it is larger than the sum of its proper divisors (2385629734).

4220729402 is a wasteful number, since it uses less digits than its factorization.

4220729402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91755012.

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 4220729402 is about 64967.1409406324. The cubic root of 4220729402 is about 1616.0786886678.

Adding to 4220729402 its reverse (2049270224), we get a palindrome (6269999626).

The spelling of 4220729402 in words is "four billion, two hundred twenty million, seven hundred twenty-nine thousand, four hundred two".