1022138494 has 16 divisors (see below), whose sum is σ = 1660276800. Its totient is φ = 469147680.

The previous prime is 1022138473. The next prime is 1022138519. The reversal of 1022138494 is 4948312201.

It is a super-3 number, since 3×1022138494³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103894 + ... + 113305.

It is an arithmetic number, because the mean of its divisors is an integer number (103767300).

Almost surely, 2^1022138494 is an apocalyptic number.

1022138494 is a deficient number, since it is larger than the sum of its proper divisors (638138306).

1022138494 is a wasteful number, since it uses less digits than its factorization.

1022138494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217395.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 1022138494 is about 31970.9007380149. The cubic root of 1022138494 is about 1007.3257010572.

The spelling of 1022138494 in words is "one billion, twenty-two million, one hundred thirty-eight thousand, four hundred ninety-four".