1208887420 has 36 divisors (see below), whose sum is σ = 2748974760. Its totient is φ = 446357184.

The previous prime is 1208887409. The next prime is 1208887453. The reversal of 1208887420 is 247888021.

It is a super-2 number, since 2×1208887420² = 2922817588468512800, 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 11 ways as a sum of consecutive naturals, for example, 175450 + ... + 182209.

It is an arithmetic number, because the mean of its divisors is an integer number (76360410).

Almost surely, 2^1208887420 is an apocalyptic number.

1208887420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1208887420 is an abundant number, since it is smaller than the sum of its proper divisors (1540087340).

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

1208887420 is a wasteful number, since it uses less digits than its factorization.

1208887420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357694 (or 357679 counting only the distinct ones).

The product of its (nonzero) digits is 57344, while the sum is 40.

The square root of 1208887420 is about 34769.0583709136. The cubic root of 1208887420 is about 1065.2755339308.

The spelling of 1208887420 in words is "one billion, two hundred eight million, eight hundred eighty-seven thousand, four hundred twenty".