20630598 has 16 divisors (see below), whose sum is σ = 41306160. Its totient is φ = 6869376.

The previous prime is 20630587. The next prime is 20630611. The reversal of 20630598 is 89503602.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8586 + ... + 10722.

It is an arithmetic number, because the mean of its divisors is an integer number (2581635).

Almost surely, 2^20630598 is an apocalyptic number.

20630598 is an abundant number, since it is smaller than the sum of its proper divisors (20675562).

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

20630598 is a wasteful number, since it uses less digits than its factorization.

20630598 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3751.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 20630598 is about 4542.0918088475. The cubic root of 20630598 is about 274.2651366476.

It can be divided in two parts, 206305 and 98, that added together give a triangular number (206403 = T₆₄₂).

The spelling of 20630598 in words is "twenty million, six hundred thirty thousand, five hundred ninety-eight".