1102021740 has 48 divisors (see below), whose sum is σ = 3428513760. Its totient is φ = 293872320.

The previous prime is 1102021729. The next prime is 1102021741. The reversal of 1102021740 is 471202011.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1102021741) 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, 1019851 + ... + 1020930.

It is an arithmetic number, because the mean of its divisors is an integer number (71427370).

Almost surely, 2^1102021740 is an apocalyptic number.

1102021740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1102021740 is an abundant number, since it is smaller than the sum of its proper divisors (2326492020).

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

1102021740 is a wasteful number, since it uses less digits than its factorization.

1102021740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2040799 (or 2040791 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 18.

The square root of 1102021740 is about 33196.7127890699. The cubic root of 1102021740 is about 1032.9121532461.

Adding to 1102021740 its reverse (471202011), we get a palindrome (1573223751).

The spelling of 1102021740 in words is "one billion, one hundred two million, twenty-one thousand, seven hundred forty".