1405060491 has 4 divisors (see below), whose sum is σ = 1873413992. Its totient is φ = 936706992.

The previous prime is 1405060477. The next prime is 1405060493. The reversal of 1405060491 is 1940605041.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1405060491 - 2¹⁴ = 1405044107 is a prime.

It is a super-2 number, since 2×1405060491² = 3948389966738322162, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1405060493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 234176746 + ... + 234176751.

It is an arithmetic number, because the mean of its divisors is an integer number (468353498).

Almost surely, 2^1405060491 is an apocalyptic number.

1405060491 is a deficient number, since it is larger than the sum of its proper divisors (468353501).

1405060491 is an equidigital number, since it uses as much as digits as its factorization.

1405060491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468353500.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 1405060491 is about 37484.1365246687. The cubic root of 1405060491 is about 1120.0352058980.

The spelling of 1405060491 in words is "one billion, four hundred five million, sixty thousand, four hundred ninety-one".