1025021662 has 16 divisors (see below), whose sum is σ = 1767000960. Its totient is φ = 436839768.

The previous prime is 1025021653. The next prime is 1025021663. The reversal of 1025021662 is 2661205201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1025021663) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 202008 + ... + 207019.

It is an arithmetic number, because the mean of its divisors is an integer number (110437560).

Almost surely, 2^1025021662 is an apocalyptic number.

1025021662 is a deficient number, since it is larger than the sum of its proper divisors (741979298).

1025021662 is a wasteful number, since it uses less digits than its factorization.

1025021662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409215.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 1025021662 is about 32015.9594889799. The cubic root of 1025021662 is about 1008.2719403339.

Adding to 1025021662 its reverse (2661205201), we get a palindrome (3686226863).

The spelling of 1025021662 in words is "one billion, twenty-five million, twenty-one thousand, six hundred sixty-two".