4207157690 has 8 divisors (see below), whose sum is σ = 7572883860. Its totient is φ = 1682863072.

The previous prime is 4207157659. The next prime is 4207157699. The reversal of 4207157690 is 967517024.

4207157690 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 3848093089 + 359064601 = 62033^2 + 18949^2 .

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

It is a super-2 number, since 2×4207157690² = 35400351657052272200, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4207157699) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 210357875 + ... + 210357894.

Almost surely, 2^4207157690 is an apocalyptic number.

4207157690 is a deficient number, since it is larger than the sum of its proper divisors (3365726170).

4207157690 is a wasteful number, since it uses less digits than its factorization.

4207157690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420715776.

The product of its (nonzero) digits is 105840, while the sum is 41.

The square root of 4207157690 is about 64862.6062535264. The cubic root of 4207157690 is about 1614.3446672920.

The spelling of 4207157690 in words is "four billion, two hundred seven million, one hundred fifty-seven thousand, six hundred ninety".