1373573434 has 4 divisors (see below), whose sum is σ = 2060360154. Its totient is φ = 686786716.

The previous prime is 1373573423. The next prime is 1373573471. The reversal of 1373573434 is 4343753731.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 1289025409 + 84548025 = 35903^2 + 9195^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 343393357 + ... + 343393360.

Almost surely, 2^1373573434 is an apocalyptic number.

1373573434 is a deficient number, since it is larger than the sum of its proper divisors (686786720).

1373573434 is an equidigital number, since it uses as much as digits as its factorization.

1373573434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 686786719.

The product of its digits is 317520, while the sum is 40.

The square root of 1373573434 is about 37061.7516315676. The cubic root of 1373573434 is about 1111.6053480450.

The spelling of 1373573434 in words is "one billion, three hundred seventy-three million, five hundred seventy-three thousand, four hundred thirty-four".