1672646452 has 6 divisors (see below), whose sum is σ = 2927131298. Its totient is φ = 836323224.

The previous prime is 1672646441. The next prime is 1672646483. The reversal of 1672646452 is 2546462761.

It can be written as a sum of positive squares in only one way, i.e., 1015441956 + 657204496 = 31866^2 + 25636^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1672646399 and 1672646408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 209080803 + ... + 209080810.

Almost surely, 2^1672646452 is an apocalyptic number.

It is an amenable number.

1672646452 is a deficient number, since it is larger than the sum of its proper divisors (1254484846).

1672646452 is a wasteful number, since it uses less digits than its factorization.

1672646452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418161617 (or 418161615 counting only the distinct ones).

The product of its digits is 483840, while the sum is 43.

The square root of 1672646452 is about 40898.0005868258. Note that the first 3 decimals coincide. The cubic root of 1672646452 is about 1187.0473729392.

The spelling of 1672646452 in words is "one billion, six hundred seventy-two million, six hundred forty-six thousand, four hundred fifty-two".