1064600040 has 64 divisors (see below), whose sum is σ = 3650060160. Its totient is φ = 243336960.

The previous prime is 1064600021. The next prime is 1064600041. The reversal of 1064600040 is 400064601.

It is a super-2 number, since 2×1064600040² = 2266746490336003200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (1064600041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 632851 + ... + 634530.

It is an arithmetic number, because the mean of its divisors is an integer number (57032190).

Almost surely, 2^1064600040 is an apocalyptic number.

1064600040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1064600040 is an abundant number, since it is smaller than the sum of its proper divisors (2585460120).

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

1064600040 is a wasteful number, since it uses less digits than its factorization.

1064600040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1267402 (or 1267398 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1064600040 is about 32628.2092674422. The cubic root of 1064600040 is about 1021.0856184494.

Adding to 1064600040 its reverse (400064601), we get a palindrome (1464664641).

The spelling of 1064600040 in words is "one billion, sixty-four million, six hundred thousand, forty".