1671452478 has 48 divisors (see below), whose sum is σ = 3837834000. Its totient is φ = 523922688.

The previous prime is 1671452437. The next prime is 1671452491. The reversal of 1671452478 is 8742541761.

1671452478 is a `hidden beast` number, since 167 + 14 + 5 + 2 + 478 = 666.

1671452478 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 606648 + ... + 609396.

It is an arithmetic number, because the mean of its divisors is an integer number (79954875).

Almost surely, 2^1671452478 is an apocalyptic number.

1671452478 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1671452478 is an abundant number, since it is smaller than the sum of its proper divisors (2166381522).

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

1671452478 is a wasteful number, since it uses less digits than its factorization.

1671452478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4761 (or 4758 counting only the distinct ones).

The product of its digits is 376320, while the sum is 45.

The square root of 1671452478 is about 40883.4010082332. The cubic root of 1671452478 is about 1186.7648583514.

The spelling of 1671452478 in words is "one billion, six hundred seventy-one million, four hundred fifty-two thousand, four hundred seventy-eight".