1461994494 has 64 divisors (see below), whose sum is σ = 3096576000. Its totient is φ = 459261792.

The previous prime is 1461994477. The next prime is 1461994531. The reversal of 1461994494 is 4944991641.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3817027 + ... + 3817409.

It is an arithmetic number, because the mean of its divisors is an integer number (48384000).

Almost surely, 2^1461994494 is an apocalyptic number.

1461994494 is an abundant number, since it is smaller than the sum of its proper divisors (1634581506).

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

1461994494 is a wasteful number, since it uses less digits than its factorization.

1461994494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 749.

The product of its digits is 1119744, while the sum is 51.

The square root of 1461994494 is about 38236.0365885378. The cubic root of 1461994494 is about 1134.9635453111.

The spelling of 1461994494 in words is "one billion, four hundred sixty-one million, nine hundred ninety-four thousand, four hundred ninety-four".