1025662220 has 24 divisors (see below), whose sum is σ = 2349699408. Its totient is φ = 372968000.

The previous prime is 1025662217. The next prime is 1025662223. The reversal of 1025662220 is 222665201.

1025662220 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1025662217) and next prime (1025662223).

It is a self number, because there is not a number n which added to its sum of digits gives 1025662220.

It is not an unprimeable number, because it can be changed into a prime (1025662223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2330831 + ... + 2331270.

It is an arithmetic number, because the mean of its divisors is an integer number (97904142).

Almost surely, 2^1025662220 is an apocalyptic number.

1025662220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1025662220 is an abundant number, since it is smaller than the sum of its proper divisors (1324037188).

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

1025662220 is a wasteful number, since it uses less digits than its factorization.

1025662220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4662121 (or 4662119 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 1025662220 is about 32025.9616561314. The cubic root of 1025662220 is about 1008.4819268450.

The spelling of 1025662220 in words is "one billion, twenty-five million, six hundred sixty-two thousand, two hundred twenty".