434626981 has 16 divisors (see below), whose sum is σ = 469428480. Its totient is φ = 400896000.

The previous prime is 434626963. The next prime is 434626987. The reversal of 434626981 is 189626434.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 434626981 - 2²¹ = 432529829 is a prime.

It is a super-2 number, since 2×434626981² = 377801225226348722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (434626987) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 578356 + ... + 579106.

It is an arithmetic number, because the mean of its divisors is an integer number (29339280).

Almost surely, 2^434626981 is an apocalyptic number.

It is an amenable number.

434626981 is a deficient number, since it is larger than the sum of its proper divisors (34801499).

434626981 is a wasteful number, since it uses less digits than its factorization.

434626981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1404.

The product of its digits is 248832, while the sum is 43.

The square root of 434626981 is about 20847.7092506587. The cubic root of 434626981 is about 757.4818439737.

The spelling of 434626981 in words is "four hundred thirty-four million, six hundred twenty-six thousand, nine hundred eighty-one".