1630415450 has 12 divisors (see below), whose sum is σ = 3032572830. Its totient is φ = 652166160.

The previous prime is 1630415411. The next prime is 1630415533. The reversal of 1630415450 is 545140361.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 1570616161 + 59799289 = 39631^2 + 7733^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16304105 + ... + 16304204.

Almost surely, 2^1630415450 is an apocalyptic number.

1630415450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1630415450 is a deficient number, since it is larger than the sum of its proper divisors (1402157380).

1630415450 is a wasteful number, since it uses less digits than its factorization.

1630415450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32608321 (or 32608316 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 1630415450 is about 40378.4032621400. The cubic root of 1630415450 is about 1176.9718993856.

The spelling of 1630415450 in words is "one billion, six hundred thirty million, four hundred fifteen thousand, four hundred fifty".