1006345402 has 4 divisors (see below), whose sum is σ = 1509518106. Its totient is φ = 503172700.

The previous prime is 1006345391. The next prime is 1006345411. The reversal of 1006345402 is 2045436001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2045436001 = 7 ⋅292205143.

It can be written as a sum of positive squares in only one way, i.e., 827080081 + 179265321 = 28759^2 + 13389^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 251586349 + ... + 251586352.

Almost surely, 2^1006345402 is an apocalyptic number.

1006345402 is a deficient number, since it is larger than the sum of its proper divisors (503172704).

1006345402 is an equidigital number, since it uses as much as digits as its factorization.

1006345402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503172703.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 1006345402 is about 31722.9475616627. The cubic root of 1006345402 is about 1002.1106759129.

The spelling of 1006345402 in words is "one billion, six million, three hundred forty-five thousand, four hundred two".