1630644514 has 16 divisors (see below), whose sum is σ = 2454725952. Its totient is φ = 812408688.

The previous prime is 1630644479. The next prime is 1630644523. The reversal of 1630644514 is 4154460361.

It is a self number, because there is not a number n which added to its sum of digits gives 1630644514.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1098817 + ... + 1100299.

It is an arithmetic number, because the mean of its divisors is an integer number (153420372).

Almost surely, 2^1630644514 is an apocalyptic number.

1630644514 is a deficient number, since it is larger than the sum of its proper divisors (824081438).

1630644514 is a wasteful number, since it uses less digits than its factorization.

1630644514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3081.

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 1630644514 is about 40381.2396293130. The cubic root of 1630644514 is about 1177.0270160669.

It can be divided in two parts, 163064 and 4514, that multiplied together give a triangular number (736070896 = T₃₈₃₆₈).

The spelling of 1630644514 in words is "one billion, six hundred thirty million, six hundred forty-four thousand, five hundred fourteen".