1074067638 has 32 divisors (see below), whose sum is σ = 2462885376. Its totient is φ = 305892288.

The previous prime is 1074067637. The next prime is 1074067649. The reversal of 1074067638 is 8367604701.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 1074067638.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1074067637) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27706 + ... + 53997.

It is an arithmetic number, because the mean of its divisors is an integer number (76965168).

Almost surely, 2^1074067638 is an apocalyptic number.

1074067638 is an abundant number, since it is smaller than the sum of its proper divisors (1388817738).

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

1074067638 is a wasteful number, since it uses less digits than its factorization.

1074067638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82028.

The product of its (nonzero) digits is 169344, while the sum is 42.

The square root of 1074067638 is about 32772.9711500193. The cubic root of 1074067638 is about 1024.1035630070.

The spelling of 1074067638 in words is "one billion, seventy-four million, sixty-seven thousand, six hundred thirty-eight".