919457656 has 16 divisors (see below), whose sum is σ = 1856597400. Its totient is φ = 424365024.

The previous prime is 919457653. The next prime is 919457681. The reversal of 919457656 is 656754919.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (919457653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4420366 + ... + 4420573.

Almost surely, 2^919457656 is an apocalyptic number.

It is an amenable number.

919457656 is an abundant number, since it is smaller than the sum of its proper divisors (937139744).

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

919457656 is a wasteful number, since it uses less digits than its factorization.

919457656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8840958 (or 8840954 counting only the distinct ones).

The product of its digits is 2041200, while the sum is 52.

The square root of 919457656 is about 30322.5601821482. The cubic root of 919457656 is about 972.3976735383.

The spelling of 919457656 in words is "nine hundred nineteen million, four hundred fifty-seven thousand, six hundred fifty-six".