1225964782 has 32 divisors (see below), whose sum is σ = 2128158720. Its totient is φ = 518827680.

The previous prime is 1225964777. The next prime is 1225964807. The reversal of 1225964782 is 2874695221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 405657 + ... + 408667.

It is an arithmetic number, because the mean of its divisors is an integer number (66504960).

Almost surely, 2^1225964782 is an apocalyptic number.

1225964782 is a deficient number, since it is larger than the sum of its proper divisors (902193938).

1225964782 is a wasteful number, since it uses less digits than its factorization.

1225964782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3376.

The product of its digits is 483840, while the sum is 46.

The square root of 1225964782 is about 35013.7798873529. The cubic root of 1225964782 is about 1070.2683060817.

The spelling of 1225964782 in words is "one billion, two hundred twenty-five million, nine hundred sixty-four thousand, seven hundred eighty-two".