1672213620 has 192 divisors, whose sum is σ = 6091739136. Its totient is φ = 332344320.

The previous prime is 1672213601. The next prime is 1672213633. The reversal of 1672213620 is 263122761.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 98392 + ... + 114128.

It is an arithmetic number, because the mean of its divisors is an integer number (31727808).

Almost surely, 2^1672213620 is an apocalyptic number.

1672213620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1672213620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3045869568).

1672213620 is an abundant number, since it is smaller than the sum of its proper divisors (4419525516).

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

1672213620 is a wasteful number, since it uses less digits than its factorization.

1672213620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15790 (or 15788 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 1672213620 is about 40892.7086410279. The cubic root of 1672213620 is about 1186.9449730542.

The spelling of 1672213620 in words is "one billion, six hundred seventy-two million, two hundred thirteen thousand, six hundred twenty".