1672611408 has 60 divisors (see below), whose sum is σ = 5041070580. Its totient is φ = 514649088.

The previous prime is 1672611373. The next prime is 1672611427. The reversal of 1672611408 is 8041162761.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 779079744 + 893531664 = 27912^2 + 29892^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 444873 + ... + 448616.

It is an arithmetic number, because the mean of its divisors is an integer number (84017843).

Almost surely, 2^1672611408 is an apocalyptic number.

1672611408 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1672611408 is an abundant number, since it is smaller than the sum of its proper divisors (3368459172).

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

1672611408 is a wasteful number, since it uses less digits than its factorization.

1672611408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 893516 (or 893507 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 1672611408 is about 40897.5721528797. The cubic root of 1672611408 is about 1187.0390828473.

The spelling of 1672611408 in words is "one billion, six hundred seventy-two million, six hundred eleven thousand, four hundred eight".