1470421638 has 48 divisors (see below), whose sum is σ = 3651298560. Its totient is φ = 418937328.

The previous prime is 1470421619. The next prime is 1470421639. The reversal of 1470421638 is 8361240741.

1470421638 is a `hidden beast` number, since 14 + 7 + 0 + 4 + 2 + 1 + 638 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1470421639) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28981 + ... + 61487.

It is an arithmetic number, because the mean of its divisors is an integer number (76068720).

Almost surely, 2^1470421638 is an apocalyptic number.

1470421638 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1470421638 is an abundant number, since it is smaller than the sum of its proper divisors (2180876922).

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

1470421638 is a wasteful number, since it uses less digits than its factorization.

1470421638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32881 (or 32878 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 1470421638 is about 38346.0772178850. The cubic root of 1470421638 is about 1137.1400657758.

The spelling of 1470421638 in words is "one billion, four hundred seventy million, four hundred twenty-one thousand, six hundred thirty-eight".