1071219540 has 48 divisors (see below), whose sum is σ = 3016016640. Its totient is φ = 284077440.

The previous prime is 1071219509. The next prime is 1071219551. The reversal of 1071219540 is 459121701.

It is a super-2 number, since 2×1071219540² = 2295022605755623200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 1071219498 and 1071219507.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38460 + ... + 60179.

It is an arithmetic number, because the mean of its divisors is an integer number (62833680).

Almost surely, 2^1071219540 is an apocalyptic number.

1071219540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1071219540 is an abundant number, since it is smaller than the sum of its proper divisors (1944797100).

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

1071219540 is a wasteful number, since it uses less digits than its factorization.

1071219540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98832 (or 98830 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 30.

The square root of 1071219540 is about 32729.4903718344. The cubic root of 1071219540 is about 1023.1975588543.

The spelling of 1071219540 in words is "one billion, seventy-one million, two hundred nineteen thousand, five hundred forty".