1651430442 has 16 divisors (see below), whose sum is σ = 3333163680. Its totient is φ = 545426352.

The previous prime is 1651430441. The next prime is 1651430461. The reversal of 1651430442 is 2440341561.

It is not an unprimeable number, because it can be changed into a prime (1651430441) 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, 1261908 + ... + 1263215.

It is an arithmetic number, because the mean of its divisors is an integer number (208322730).

Almost surely, 2^1651430442 is an apocalyptic number.

1651430442 is an abundant number, since it is smaller than the sum of its proper divisors (1681733238).

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

1651430442 is a wasteful number, since it uses less digits than its factorization.

1651430442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2525237.

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 1651430442 is about 40637.7957325444. The cubic root of 1651430442 is about 1182.0071274561.

The spelling of 1651430442 in words is "one billion, six hundred fifty-one million, four hundred thirty thousand, four hundred forty-two".