1671228400 has 30 divisors (see below), whose sum is σ = 4015127192. Its totient is φ = 668491200.

The previous prime is 1671228371. The next prime is 1671228437. The reversal of 1671228400 is 48221761.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2088636 + ... + 2089435.

Almost surely, 2^1671228400 is an apocalyptic number.

1671228400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1671228400 is an abundant number, since it is smaller than the sum of its proper divisors (2343898792).

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

1671228400 is a wasteful number, since it uses less digits than its factorization.

1671228400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4178089 (or 4178078 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 1671228400 is about 40880.6604643320. The cubic root of 1671228400 is about 1186.7118226866.

The spelling of 1671228400 in words is "one billion, six hundred seventy-one million, two hundred twenty-eight thousand, four hundred".