1630464 has 72 divisors (see below), whose sum is σ = 4758432. Its totient is φ = 491520.

The previous prime is 1630463. The next prime is 1630471. The reversal of 1630464 is 4640361.

It is a super-3 number, since 3×1630464³ = 13003339373092012032, which contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (1630463) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8352 + ... + 8544.

2^1630464 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1630464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2379216).

1630464 is an abundant number, since it is smaller than the sum of its proper divisors (3127968).

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

1630464 is a wasteful number, since it uses less digits than its factorization.

1630464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223 (or 209 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 1630464 is about 1276.8962369746. The cubic root of 1630464 is about 117.6983581770.

The spelling of 1630464 in words is "one million, six hundred thirty thousand, four hundred sixty-four".