1473642621 has 48 divisors (see below), whose sum is σ = 2357776512. Its totient is φ = 879504000.

The previous prime is 1473642619. The next prime is 1473642661. The reversal of 1473642621 is 1262463741.

1473642621 is a `hidden beast` number, since 1 + 4 + 7 + 3 + 642 + 6 + 2 + 1 = 666.

It is not a de Polignac number, because 1473642621 - 2¹ = 1473642619 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1473642661) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2929456 + ... + 2929958.

It is an arithmetic number, because the mean of its divisors is an integer number (49120344).

Almost surely, 2^1473642621 is an apocalyptic number.

1473642621 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1473642621 is a deficient number, since it is larger than the sum of its proper divisors (884133891).

1473642621 is a wasteful number, since it uses less digits than its factorization.

1473642621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 914 (or 911 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 1473642621 is about 38388.0531024953. The cubic root of 1473642621 is about 1137.9697683064.

The spelling of 1473642621 in words is "one billion, four hundred seventy-three million, six hundred forty-two thousand, six hundred twenty-one".