1225914680 has 32 divisors (see below), whose sum is σ = 2853424800. Its totient is φ = 473456256.

The previous prime is 1225914671. The next prime is 1225914691. The reversal of 1225914680 is 864195221.

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, 527252 + ... + 529571.

It is an arithmetic number, because the mean of its divisors is an integer number (89169525).

Almost surely, 2^1225914680 is an apocalyptic number.

1225914680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1225914680 is an abundant number, since it is smaller than the sum of its proper divisors (1627510120).

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

1225914680 is a wasteful number, since it uses less digits than its factorization.

1225914680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1056863 (or 1056859 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 1225914680 is about 35013.0644188709. The cubic root of 1225914680 is about 1070.2537261867.

The spelling of 1225914680 in words is "one billion, two hundred twenty-five million, nine hundred fourteen thousand, six hundred eighty".