1214646620 has 24 divisors (see below), whose sum is σ = 2782645488. Its totient is φ = 441689600.

The previous prime is 1214646599. The next prime is 1214646637. The reversal of 1214646620 is 266464121.

It is a super-2 number, since 2×1214646620² = 2950732822954848800, which contains 22 as substring.

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, 2760341 + ... + 2760780.

It is an arithmetic number, because the mean of its divisors is an integer number (115943562).

Almost surely, 2^1214646620 is an apocalyptic number.

1214646620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1214646620 is an abundant number, since it is smaller than the sum of its proper divisors (1567998868).

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

1214646620 is a wasteful number, since it uses less digits than its factorization.

1214646620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5521141 (or 5521139 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 1214646620 is about 34851.7807292540. The cubic root of 1214646620 is about 1066.9645298792.

The spelling of 1214646620 in words is "one billion, two hundred fourteen million, six hundred forty-six thousand, six hundred twenty".