1672393690 has 64 divisors (see below), whose sum is σ = 3419781120. Its totient is φ = 583488000.

The previous prime is 1672393637. The next prime is 1672393693. The reversal of 1672393690 is 963932761.

It is a super-2 number, since 2×1672393690² = 5593801308703632200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1672393690.

It is not an unprimeable number, because it can be changed into a prime (1672393693) by changing a digit.

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, 272071 + ... + 278149.

It is an arithmetic number, because the mean of its divisors is an integer number (53434080).

Almost surely, 2^1672393690 is an apocalyptic number.

1672393690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1672393690 is an abundant number, since it is smaller than the sum of its proper divisors (1747387430).

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

1672393690 is a wasteful number, since it uses less digits than its factorization.

1672393690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6199.

The product of its (nonzero) digits is 367416, while the sum is 46.

The square root of 1672393690 is about 40894.9103190116. The cubic root of 1672393690 is about 1186.9875763650.

The spelling of 1672393690 in words is "one billion, six hundred seventy-two million, three hundred ninety-three thousand, six hundred ninety".