1602990628 has 6 divisors (see below), whose sum is σ = 2805233606. Its totient is φ = 801495312.

The previous prime is 1602990619. The next prime is 1602990629. The reversal of 1602990628 is 8260992061.

It can be written as a sum of positive squares in only one way, i.e., 1041869284 + 561121344 = 32278^2 + 23688^2 .

It is not an unprimeable number, because it can be changed into a prime (1602990629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200373825 + ... + 200373832.

Almost surely, 2^1602990628 is an apocalyptic number.

It is an amenable number.

1602990628 is a deficient number, since it is larger than the sum of its proper divisors (1202242978).

1602990628 is a wasteful number, since it uses less digits than its factorization.

1602990628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400747661 (or 400747659 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 43.

The square root of 1602990628 is about 40037.3653978381. The cubic root of 1602990628 is about 1170.3353625051.

The spelling of 1602990628 in words is "one billion, six hundred two million, nine hundred ninety thousand, six hundred twenty-eight".