1621008248 has 32 divisors (see below), whose sum is σ = 3064294800. Its totient is φ = 803887872.

The previous prime is 1621008247. The next prime is 1621008269. The reversal of 1621008248 is 8428001261.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1621008241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 653186 + ... + 655662.

Almost surely, 2^1621008248 is an apocalyptic number.

It is an amenable number.

1621008248 is a deficient number, since it is larger than the sum of its proper divisors (1443286552).

1621008248 is a wasteful number, since it uses less digits than its factorization.

1621008248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3119 (or 3115 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 32.

The square root of 1621008248 is about 40261.7467082589. The cubic root of 1621008248 is about 1174.7038935162.

The spelling of 1621008248 in words is "one billion, six hundred twenty-one million, eight thousand, two hundred forty-eight".