1016961840 has 60 divisors (see below), whose sum is σ = 3415299264. Its totient is φ = 271189632.

The previous prime is 1016961787. The next prime is 1016961857. The reversal of 1016961840 is 481696101.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (60).

It is a super-2 number, since 2×1016961840² = 2068422768032371200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1016961795 and 1016961804.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 705504 + ... + 706943.

Almost surely, 2^1016961840 is an apocalyptic number.

1016961840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1016961840 is an abundant number, since it is smaller than the sum of its proper divisors (2398337424).

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

1016961840 is a wasteful number, since it uses less digits than its factorization.

1016961840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1412466 (or 1412457 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 1016961840 is about 31889.8391341192. The cubic root of 1016961840 is about 1005.6222774232.

The spelling of 1016961840 in words is "one billion, sixteen million, nine hundred sixty-one thousand, eight hundred forty".