919477452 has 12 divisors (see below), whose sum is σ = 2145447416. Its totient is φ = 306492480.

The previous prime is 919477441. The next prime is 919477459. The reversal of 919477452 is 254774919.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (919477459) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38311549 + ... + 38311572.

Almost surely, 2^919477452 is an apocalyptic number.

It is an amenable number.

919477452 is an abundant number, since it is smaller than the sum of its proper divisors (1225969964).

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

919477452 is a wasteful number, since it uses less digits than its factorization.

919477452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76623128 (or 76623126 counting only the distinct ones).

The product of its digits is 635040, while the sum is 48.

The square root of 919477452 is about 30322.8866040158. The cubic root of 919477452 is about 972.4046520892.

It can be divided in two parts, 91947 and 7452, that added together give a palindrome (99399).

The spelling of 919477452 in words is "nine hundred nineteen million, four hundred seventy-seven thousand, four hundred fifty-two".