1020002292 has 18 divisors (see below), whose sum is σ = 2578339218. Its totient is φ = 340000752.

The previous prime is 1020002279. The next prime is 1020002299. The reversal of 1020002292 is 2922000201.

It can be written as a sum of positive squares in only one way, i.e., 659154276 + 360848016 = 25674^2 + 18996^2 .

It is a tau number, because it is divible by the number of its divisors (18).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020002299) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14166663 + ... + 14166734.

Almost surely, 2^1020002292 is an apocalyptic number.

1020002292 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1020002292 is an abundant number, since it is smaller than the sum of its proper divisors (1558336926).

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

1020002292 is a wasteful number, since it uses less digits than its factorization.

1020002292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28333407 (or 28333402 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1020002292 is about 31937.4747279743. The cubic root of 1020002292 is about 1006.6234635397.

Adding to 1020002292 its reverse (2922000201), we get a palindrome (3942002493).

The spelling of 1020002292 in words is "one billion, twenty million, two thousand, two hundred ninety-two".