1461221446 has 16 divisors (see below), whose sum is σ = 2266813440. Its totient is φ = 706010760.

The previous prime is 1461221357. The next prime is 1461221449. The reversal of 1461221446 is 6441221641.

It is a super-2 number, since 2×1461221446² = 4270336228500661832, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1461221449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90960 + ... + 105811.

It is an arithmetic number, because the mean of its divisors is an integer number (141675840).

Almost surely, 2^1461221446 is an apocalyptic number.

1461221446 is a deficient number, since it is larger than the sum of its proper divisors (805591994).

1461221446 is a wasteful number, since it uses less digits than its factorization.

1461221446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196899.

The product of its digits is 9216, while the sum is 31.

The square root of 1461221446 is about 38225.9263589517. The cubic root of 1461221446 is about 1134.7634679533.

The spelling of 1461221446 in words is "one billion, four hundred sixty-one million, two hundred twenty-one thousand, four hundred forty-six".