1061401630 has 48 divisors (see below), whose sum is σ = 2038298256. Its totient is φ = 397859840.

The previous prime is 1061401619. The next prime is 1061401633. The reversal of 1061401630 is 361041601.

It is a happy number.

It is a super-2 number, since 2×1061401630² = 2253146840333313800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1061401633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 811437 + ... + 812743.

It is an arithmetic number, because the mean of its divisors is an integer number (42464547).

Almost surely, 2^1061401630 is an apocalyptic number.

1061401630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1061401630 is a deficient number, since it is larger than the sum of its proper divisors (976896626).

1061401630 is a wasteful number, since it uses less digits than its factorization.

1061401630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1629 (or 1612 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 1061401630 is about 32579.1594428094. The cubic root of 1061401630 is about 1020.0620332643.

The spelling of 1061401630 in words is "one billion, sixty-one million, four hundred one thousand, six hundred thirty".