1051442780 has 24 divisors (see below), whose sum is σ = 2213032752. Its totient is φ = 419624192.

The previous prime is 1051442771. The next prime is 1051442797. The reversal of 1051442780 is 872441501.

It is a happy number.

It is a super-2 number, since 2×1051442780² = 2211063839228256800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50477 + ... + 68196.

It is an arithmetic number, because the mean of its divisors is an integer number (92209698).

Almost surely, 2^1051442780 is an apocalyptic number.

1051442780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1051442780 is an abundant number, since it is smaller than the sum of its proper divisors (1161589972).

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

1051442780 is a wasteful number, since it uses less digits than its factorization.

1051442780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119125 (or 119123 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 32.

The square root of 1051442780 is about 32425.9584283950. The cubic root of 1051442780 is about 1016.8616790951.

The spelling of 1051442780 in words is "one billion, fifty-one million, four hundred forty-two thousand, seven hundred eighty".