30760220 has 12 divisors (see below), whose sum is σ = 64596504. Its totient is φ = 12304080.

The previous prime is 30760211. The next prime is 30760237. The reversal of 30760220 is 2206703.

It is a super-2 number, since 2×30760220² = 1892382268896800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 1538011 = 30760220 / (3 + 0 + 7 + 6 + 0 + 2 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 30760192 and 30760201.

It is a congruent number.

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, 768986 + ... + 769025.

It is an arithmetic number, because the mean of its divisors is an integer number (5383042).

Almost surely, 2^30760220 is an apocalyptic number.

It is an amenable number.

30760220 is an abundant number, since it is smaller than the sum of its proper divisors (33836284).

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

30760220 is a wasteful number, since it uses less digits than its factorization.

30760220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1538020 (or 1538018 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 20.

The square root of 30760220 is about 5546.1896830166. The cubic root of 30760220 is about 313.3260322226.

Adding to 30760220 its reverse (2206703), we get a palindrome (32966923).

The spelling of 30760220 in words is "thirty million, seven hundred sixty thousand, two hundred twenty".