1071466640 has 40 divisors (see below), whose sum is σ = 2571525888. Its totient is φ = 414760320.

The previous prime is 1071466607. The next prime is 1071466663. The reversal of 1071466640 is 466641701.

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

It is a super-2 number, since 2×1071466640² = 2296081521265779200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1071466640.

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, 213542 + ... + 218501.

Almost surely, 2^1071466640 is an apocalyptic number.

1071466640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1071466640 is an abundant number, since it is smaller than the sum of its proper divisors (1500059248).

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

1071466640 is a wasteful number, since it uses less digits than its factorization.

1071466640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432087 (or 432081 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 1071466640 is about 32733.2650372675. The cubic root of 1071466640 is about 1023.2762270356.

The spelling of 1071466640 in words is "one billion, seventy-one million, four hundred sixty-six thousand, six hundred forty".