1061610040 has 32 divisors (see below), whose sum is σ = 2389585680. Its totient is φ = 424472832.

The previous prime is 1061610013. The next prime is 1061610041. The reversal of 1061610040 is 400161601.

It is a happy number.

It is a super-2 number, since 2×1061610040² = 2254031754057603200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1061610041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152884 + ... + 159676.

Almost surely, 2^1061610040 is an apocalyptic number.

1061610040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1061610040 is an abundant number, since it is smaller than the sum of its proper divisors (1327975640).

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

1061610040 is a wasteful number, since it uses less digits than its factorization.

1061610040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10711 (or 10707 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 1061610040 is about 32582.3578029583. The cubic root of 1061610040 is about 1020.1287931692.

Adding to 1061610040 its reverse (400161601), we get a palindrome (1461771641).

The spelling of 1061610040 in words is "one billion, sixty-one million, six hundred ten thousand, forty".