1546676640 has 192 divisors, whose sum is σ = 5470657920. Its totient is φ = 408084480.

The previous prime is 1546676597. The next prime is 1546676641. The reversal of 1546676640 is 466766451.

1546676640 is a `hidden beast` number, since 1 + 546 + 6 + 7 + 66 + 40 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (1546676641) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 417195 + ... + 420885.

It is an arithmetic number, because the mean of its divisors is an integer number (28493010).

Almost surely, 2^1546676640 is an apocalyptic number.

1546676640 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 1546676640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2735328960).

1546676640 is an abundant number, since it is smaller than the sum of its proper divisors (3923981280).

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

1546676640 is a wasteful number, since it uses less digits than its factorization.

1546676640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3812 (or 3798 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 45.

The square root of 1546676640 is about 39327.8100076778. The cubic root of 1546676640 is about 1156.4668157714.

The spelling of 1546676640 in words is "one billion, five hundred forty-six million, six hundred seventy-six thousand, six hundred forty".