1630145370 has 32 divisors (see below), whose sum is σ = 4471256448. Its totient is φ = 372604608.

The previous prime is 1630145369. The next prime is 1630145381. The reversal of 1630145370 is 735410361.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3881089 + ... + 3881508.

It is an arithmetic number, because the mean of its divisors is an integer number (139726764).

Almost surely, 2^1630145370 is an apocalyptic number.

1630145370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1630145370 is an abundant number, since it is smaller than the sum of its proper divisors (2841111078).

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

1630145370 is a wasteful number, since it uses less digits than its factorization.

1630145370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7762614.

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 1630145370 is about 40375.0587615671. The cubic root of 1630145370 is about 1176.9069069273.

The spelling of 1630145370 in words is "one billion, six hundred thirty million, one hundred forty-five thousand, three hundred seventy".