1491602428 has 12 divisors (see below), whose sum is σ = 2619938272. Its totient is φ = 743048640.

The previous prime is 1491602419. The next prime is 1491602449. The reversal of 1491602428 is 8242061941.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 686925 + ... + 689092.

Almost surely, 2^1491602428 is an apocalyptic number.

It is an amenable number.

1491602428 is a deficient number, since it is larger than the sum of its proper divisors (1128335844).

1491602428 is a wasteful number, since it uses less digits than its factorization.

1491602428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1376292 (or 1376290 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 1491602428 is about 38621.2691143106. The cubic root of 1491602428 is about 1142.5740614382.

The spelling of 1491602428 in words is "one billion, four hundred ninety-one million, six hundred two thousand, four hundred twenty-eight".