3974401451 has 4 divisors (see below), whose sum is σ = 4058963232. Its totient is φ = 3889839672.

The previous prime is 3974401427. The next prime is 3974401489. The reversal of 3974401451 is 1541044793.

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

It is a cyclic number.

It is not a de Polignac number, because 3974401451 - 2¹⁰ = 3974400427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3974401411) 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, 42280820 + ... + 42280913.

It is an arithmetic number, because the mean of its divisors is an integer number (1014740808).

Almost surely, 2^3974401451 is an apocalyptic number.

3974401451 is a deficient number, since it is larger than the sum of its proper divisors (84561781).

3974401451 is an equidigital number, since it uses as much as digits as its factorization.

3974401451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84561780.

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 3974401451 is about 63042.8540835518. The cubic root of 3974401451 is about 1584.0075389217.

The spelling of 3974401451 in words is "three billion, nine hundred seventy-four million, four hundred one thousand, four hundred fifty-one".