1034663440 has 40 divisors (see below), whose sum is σ = 2483198208. Its totient is φ = 400513920.

The previous prime is 1034663437. The next prime is 1034663467. The reversal of 1034663440 is 443664301.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (31).

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, 206122 + ... + 211081.

Almost surely, 2^1034663440 is an apocalyptic number.

1034663440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1034663440 is an abundant number, since it is smaller than the sum of its proper divisors (1448534768).

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

1034663440 is a wasteful number, since it uses less digits than its factorization.

1034663440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417247 (or 417241 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 31.

The square root of 1034663440 is about 32166.1847286867. The cubic root of 1034663440 is about 1011.4234870372.

The spelling of 1034663440 in words is "one billion, thirty-four million, six hundred sixty-three thousand, four hundred forty".