1491467400 has 144 divisors (see below), whose sum is σ = 5027022000. Its totient is φ = 396282240.

The previous prime is 1491467387. The next prime is 1491467401. The reversal of 1491467400 is 47641941.

1491467400 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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

It is not an unprimeable number, because it can be changed into a prime (1491467401) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 551251 + ... + 553949.

It is an arithmetic number, because the mean of its divisors is an integer number (34909875).

Almost surely, 2^1491467400 is an apocalyptic number.

1491467400 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 1491467400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2513511000).

1491467400 is an abundant number, since it is smaller than the sum of its proper divisors (3535554600).

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

1491467400 is a wasteful number, since it uses less digits than its factorization.

1491467400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3028 (or 3016 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 1491467400 is about 38619.5209706180. The cubic root of 1491467400 is about 1142.5395830492.

The spelling of 1491467400 in words is "one billion, four hundred ninety-one million, four hundred sixty-seven thousand, four hundred".