1074142638 has 24 divisors (see below), whose sum is σ = 2328330576. Its totient is φ = 357890400.

The previous prime is 1074142627. The next prime is 1074142721. The reversal of 1074142638 is 8362414701.

1074142638 is a `hidden beast` number, since 1 + 0 + 7 + 4 + 14 + 2 + 638 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33543 + ... + 57213.

It is an arithmetic number, because the mean of its divisors is an integer number (97013774).

Almost surely, 2^1074142638 is an apocalyptic number.

1074142638 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1074142638 is an abundant number, since it is smaller than the sum of its proper divisors (1254187938).

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

1074142638 is a wasteful number, since it uses less digits than its factorization.

1074142638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26200 (or 26197 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 1074142638 is about 32774.1153656357. The cubic root of 1074142638 is about 1024.1273994883.

The spelling of 1074142638 in words is "one billion, seventy-four million, one hundred forty-two thousand, six hundred thirty-eight".