1405996630 has 32 divisors (see below), whose sum is σ = 2616526080. Its totient is φ = 543404160.

The previous prime is 1405996621. The next prime is 1405996639. The reversal of 1405996630 is 366995041.

It is an interprime number because it is at equal distance from previous prime (1405996621) and next prime (1405996639).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1405996639) 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, 216592 + ... + 222988.

It is an arithmetic number, because the mean of its divisors is an integer number (81766440).

Almost surely, 2^1405996630 is an apocalyptic number.

1405996630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1405996630 is a deficient number, since it is larger than the sum of its proper divisors (1210529450).

1405996630 is a wasteful number, since it uses less digits than its factorization.

1405996630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7144.

The product of its (nonzero) digits is 174960, while the sum is 43.

The square root of 1405996630 is about 37496.6215811505. The cubic root of 1405996630 is about 1120.2838964633.

The spelling of 1405996630 in words is "one billion, four hundred five million, nine hundred ninety-six thousand, six hundred thirty".