3390491281 has 8 divisors (see below), whose sum is σ = 3416946624. Its totient is φ = 3364109520.

The previous prime is 3390491267. The next prime is 3390491287. The reversal of 3390491281 is 1821940933.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3390491281 - 2²¹ = 3388394129 is a prime.

It is a super-2 number, since 2×3390491281² = 22990862253074041922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3390491287) 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, 75991 + ... + 112051.

It is an arithmetic number, because the mean of its divisors is an integer number (427118328).

Almost surely, 2^3390491281 is an apocalyptic number.

It is an amenable number.

3390491281 is a deficient number, since it is larger than the sum of its proper divisors (26455343).

3390491281 is a wasteful number, since it uses less digits than its factorization.

3390491281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36791.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 3390491281 is about 58227.9252678644. The cubic root of 3390491281 is about 1502.2915021552.

The spelling of 3390491281 in words is "three billion, three hundred ninety million, four hundred ninety-one thousand, two hundred eighty-one".