1063462644 has 18 divisors (see below), whose sum is σ = 2688197330. Its totient is φ = 354487536.

The previous prime is 1063462639. The next prime is 1063462651. The reversal of 1063462644 is 4462643601.

1063462644 is a `hidden beast` number, since 1 + 0 + 6 + 3 + 4 + 6 + 2 + 644 = 666.

It can be written as a sum of positive squares in only one way, i.e., 838102500 + 225360144 = 28950^2 + 15012^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×1063462644² = 2261905590366941472, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 29540629 = 1063462644 / (1 + 0 + 6 + 3 + 4 + 6 + 2 + 6 + 4 + 4).

It is a junction number, because it is equal to n+sod(n) for n = 1063462599 and 1063462608.

It is a congruent number.

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, 14770279 + ... + 14770350.

Almost surely, 2^1063462644 is an apocalyptic number.

It is an amenable number.

1063462644 is an abundant number, since it is smaller than the sum of its proper divisors (1624734686).

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

1063462644 is a wasteful number, since it uses less digits than its factorization.

1063462644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29540639 (or 29540634 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 36.

The square root of 1063462644 is about 32610.7749677925. The cubic root of 1063462644 is about 1020.7218534993.

The spelling of 1063462644 in words is "one billion, sixty-three million, four hundred sixty-two thousand, six hundred forty-four".