1220455410 has 16 divisors (see below), whose sum is σ = 2929093056. Its totient is φ = 325454768.

The previous prime is 1220455409. The next prime is 1220455427. The reversal of 1220455410 is 145540221.

It is a super-2 number, since 2×1220455410² = 2979022815596536200, which contains 22 as substring.

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, 20340894 + ... + 20340953.

It is an arithmetic number, because the mean of its divisors is an integer number (183068316).

Almost surely, 2^1220455410 is an apocalyptic number.

1220455410 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220455410 is an abundant number, since it is smaller than the sum of its proper divisors (1708637646).

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

1220455410 is a wasteful number, since it uses less digits than its factorization.

1220455410 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40681857.

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 1220455410 is about 34935.0169600646. The cubic root of 1220455410 is about 1068.6626696536.

Adding to 1220455410 its reverse (145540221), we get a palindrome (1365995631).

The spelling of 1220455410 in words is "one billion, two hundred twenty million, four hundred fifty-five thousand, four hundred ten".