1630047572 has 12 divisors (see below), whose sum is σ = 2855417460. Its totient is φ = 814214016.

The previous prime is 1630047557. The next prime is 1630047583. The reversal of 1630047572 is 2757400361.

It can be written as a sum of positive squares in 2 ways, for example, as 530196676 + 1099850896 = 23026^2 + 33164^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 197903 + ... + 205974.

It is an arithmetic number, because the mean of its divisors is an integer number (237951455).

Almost surely, 2^1630047572 is an apocalyptic number.

It is an amenable number.

1630047572 is a deficient number, since it is larger than the sum of its proper divisors (1225369888).

1630047572 is a wasteful number, since it uses less digits than its factorization.

1630047572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404890 (or 404888 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 35.

The square root of 1630047572 is about 40373.8476244214. The cubic root of 1630047572 is about 1176.8833708988.

The spelling of 1630047572 in words is "one billion, six hundred thirty million, forty-seven thousand, five hundred seventy-two".