3901400345 has 4 divisors (see below), whose sum is σ = 4681680420. Its totient is φ = 3121120272.

The previous prime is 3901400341. The next prime is 3901400381. The reversal of 3901400345 is 5430041093.

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

It can be written as a sum of positive squares in 2 ways, for example, as 814931209 + 3086469136 = 28547^2 + 55556^2 .

It is a cyclic number.

It is not a de Polignac number, because 3901400345 - 2² = 3901400341 is a prime.

It is a super-2 number, since 2×3901400345² = 30441849303932238050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3901400341) 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, 390140030 + ... + 390140039.

It is an arithmetic number, because the mean of its divisors is an integer number (1170420105).

Almost surely, 2^3901400345 is an apocalyptic number.

It is an amenable number.

3901400345 is a deficient number, since it is larger than the sum of its proper divisors (780280075).

3901400345 is an equidigital number, since it uses as much as digits as its factorization.

3901400345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 780280074.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 3901400345 is about 62461.1907107125. The cubic root of 3901400345 is about 1574.2492896715.

The spelling of 3901400345 in words is "three billion, nine hundred one million, four hundred thousand, three hundred forty-five".