1401880491 has 12 divisors (see below), whose sum is σ = 2209023960. Its totient is φ = 849624480.

The previous prime is 1401880489. The next prime is 1401880499. The reversal of 1401880491 is 1940881041.

It is not a de Polignac number, because 1401880491 - 2¹ = 1401880489 is a prime.

It is a super-2 number, since 2×1401880491² = 3930537822092802162, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1401880499) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7080106 + ... + 7080303.

It is an arithmetic number, because the mean of its divisors is an integer number (184085330).

Almost surely, 2^1401880491 is an apocalyptic number.

1401880491 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1401880491 is a deficient number, since it is larger than the sum of its proper divisors (807143469).

1401880491 is a wasteful number, since it uses less digits than its factorization.

1401880491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14160426 (or 14160423 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 36.

The square root of 1401880491 is about 37441.6945529980. The cubic root of 1401880491 is about 1119.1895952467.

The spelling of 1401880491 in words is "one billion, four hundred one million, eight hundred eighty thousand, four hundred ninety-one".