1672997436 has 96 divisors (see below), whose sum is σ = 4785177600. Its totient is φ = 501240960.

The previous prime is 1672997419. The next prime is 1672997449. The reversal of 1672997436 is 6347992761.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 97821 + ... + 113643.

It is an arithmetic number, because the mean of its divisors is an integer number (49845600).

Almost surely, 2^1672997436 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1672997436, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2392588800).

1672997436 is an abundant number, since it is smaller than the sum of its proper divisors (3112180164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1672997436 is a wasteful number, since it uses less digits than its factorization.

1672997436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15936 (or 15928 counting only the distinct ones).

The product of its digits is 3429216, while the sum is 54.

The square root of 1672997436 is about 40902.2913294598. The cubic root of 1672997436 is about 1187.1303961619.

The spelling of 1672997436 in words is "one billion, six hundred seventy-two million, nine hundred ninety-seven thousand, four hundred thirty-six".