1641245464 has 16 divisors (see below), whose sum is σ = 3095125920. Its totient is φ = 815878560.

The previous prime is 1641245453. The next prime is 1641245471. The reversal of 1641245464 is 4645421461.

It is a happy number.

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, 591552 + ... + 594319.

It is an arithmetic number, because the mean of its divisors is an integer number (193445370).

Almost surely, 2^1641245464 is an apocalyptic number.

It is an amenable number.

1641245464 is a deficient number, since it is larger than the sum of its proper divisors (1453880456).

1641245464 is a wasteful number, since it uses less digits than its factorization.

1641245464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1186050 (or 1186046 counting only the distinct ones).

The product of its digits is 92160, while the sum is 37.

The square root of 1641245464 is about 40512.2878149334. The cubic root of 1641245464 is about 1179.5721574461.

The spelling of 1641245464 in words is "one billion, six hundred forty-one million, two hundred forty-five thousand, four hundred sixty-four".