1630473420 has 96 divisors (see below), whose sum is σ = 4614285312. Its totient is φ = 430161408.

The previous prime is 1630473419. The next prime is 1630473433. The reversal of 1630473420 is 243740361.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3117279 + ... + 3117801.

It is an arithmetic number, because the mean of its divisors is an integer number (48065472).

Almost surely, 2^1630473420 is an apocalyptic number.

1630473420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1630473420 is an abundant number, since it is smaller than the sum of its proper divisors (2983811892).

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

1630473420 is a wasteful number, since it uses less digits than its factorization.

1630473420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 991 (or 989 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 30.

The square root of 1630473420 is about 40379.1210899891. The cubic root of 1630473420 is about 1176.9858484381.

The spelling of 1630473420 in words is "one billion, six hundred thirty million, four hundred seventy-three thousand, four hundred twenty".