1205922630 has 64 divisors (see below), whose sum is σ = 3259201536. Its totient is φ = 282912000.

The previous prime is 1205922617. The next prime is 1205922671. The reversal of 1205922630 is 362295021.

1205922630 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1205922630² = 2908498779092233800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48711 + ... + 69170.

It is an arithmetic number, because the mean of its divisors is an integer number (50925024).

Almost surely, 2^1205922630 is an apocalyptic number.

1205922630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1205922630 is an abundant number, since it is smaller than the sum of its proper divisors (2053278906).

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

1205922630 is a wasteful number, since it uses less digits than its factorization.

1205922630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117933.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 1205922630 is about 34726.3967321690. The cubic root of 1205922630 is about 1064.4039601622.

The spelling of 1205922630 in words is "one billion, two hundred five million, nine hundred twenty-two thousand, six hundred thirty".