1630706734 has 4 divisors (see below), whose sum is σ = 2446060104. Its totient is φ = 815353366.

The previous prime is 1630706731. The next prime is 1630706741. The reversal of 1630706734 is 4376070361.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 1630706693 and 1630706702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1630706731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 407676682 + ... + 407676685.

It is an arithmetic number, because the mean of its divisors is an integer number (611515026).

Almost surely, 2^1630706734 is an apocalyptic number.

1630706734 is a deficient number, since it is larger than the sum of its proper divisors (815353370).

1630706734 is an equidigital number, since it uses as much as digits as its factorization.

1630706734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 815353369.

The product of its (nonzero) digits is 63504, while the sum is 37.

The square root of 1630706734 is about 40382.0100292197. The cubic root of 1630706734 is about 1177.0419863622.

The spelling of 1630706734 in words is "one billion, six hundred thirty million, seven hundred six thousand, seven hundred thirty-four".