2406989631 has 4 divisors (see below), whose sum is σ = 3209319512. Its totient is φ = 1604659752.

The previous prime is 2406989621. The next prime is 2406989639. The reversal of 2406989631 is 1369896042.

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

It is not a de Polignac number, because 2406989631 - 2¹⁰ = 2406988607 is a prime.

It is a super-2 number, since 2×2406989631² = 11587198167483032322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2406989639) 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, 401164936 + ... + 401164941.

It is an arithmetic number, because the mean of its divisors is an integer number (802329878).

Almost surely, 2^2406989631 is an apocalyptic number.

2406989631 is a deficient number, since it is larger than the sum of its proper divisors (802329881).

2406989631 is an equidigital number, since it uses as much as digits as its factorization.

2406989631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 802329880.

The product of its (nonzero) digits is 559872, while the sum is 48.

The square root of 2406989631 is about 49061.0806138634. The cubic root of 2406989631 is about 1340.1643874586.

The spelling of 2406989631 in words is "two billion, four hundred six million, nine hundred eighty-nine thousand, six hundred thirty-one".