1051442642 has 8 divisors (see below), whose sum is σ = 1580807676. Its totient is φ = 524506752.

The previous prime is 1051442641. The next prime is 1051442699. The reversal of 1051442642 is 2462441501.

It can be written as a sum of positive squares in 2 ways, for example, as 1033558201 + 17884441 = 32149^2 + 4229^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1051442642² = 2211063258831880328, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1051442641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 606203 + ... + 607934.

Almost surely, 2^1051442642 is an apocalyptic number.

1051442642 is a deficient number, since it is larger than the sum of its proper divisors (529365034).

1051442642 is a wasteful number, since it uses less digits than its factorization.

1051442642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1214572.

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 1051442642 is about 32425.9563004702. The cubic root of 1051442642 is about 1016.8616346080.

The spelling of 1051442642 in words is "one billion, fifty-one million, four hundred forty-two thousand, six hundred forty-two".