1073725438 has 4 divisors (see below), whose sum is σ = 1610588160. Its totient is φ = 536862718.

The previous prime is 1073725427. The next prime is 1073725469. The reversal of 1073725438 is 8345273701.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1073725438.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 268431358 + ... + 268431361.

It is an arithmetic number, because the mean of its divisors is an integer number (402647040).

Almost surely, 2^1073725438 is an apocalyptic number.

1073725438 is a deficient number, since it is larger than the sum of its proper divisors (536862722).

1073725438 is an equidigital number, since it uses as much as digits as its factorization.

1073725438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536862721.

The product of its (nonzero) digits is 141120, while the sum is 40.

The square root of 1073725438 is about 32767.7499685285. The cubic root of 1073725438 is about 1023.9947910044.

The spelling of 1073725438 in words is "one billion, seventy-three million, seven hundred twenty-five thousand, four hundred thirty-eight".