1405061630 has 32 divisors (see below), whose sum is σ = 2908168704. Its totient is φ = 478776096.

The previous prime is 1405061621. The next prime is 1405061633. The reversal of 1405061630 is 361605041.

It is a self number, because there is not a number n which added to its sum of digits gives 1405061630.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1405061633) 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, 50162 + ... + 72981.

It is an arithmetic number, because the mean of its divisors is an integer number (90880272).

Almost surely, 2^1405061630 is an apocalyptic number.

1405061630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1405061630 is an abundant number, since it is smaller than the sum of its proper divisors (1503107074).

1405061630 is a wasteful number, since it uses less digits than its factorization.

1405061630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123320.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 1405061630 is about 37484.1517177593. The cubic root of 1405061630 is about 1120.0355085468.

Adding to 1405061630 its reverse (361605041), we get a palindrome (1766666671).

The spelling of 1405061630 in words is "one billion, four hundred five million, sixty-one thousand, six hundred thirty".