4400154091 has 4 divisors (see below), whose sum is σ = 4400726800. Its totient is φ = 4399581384.

The previous prime is 4400154067. The next prime is 4400154103. The reversal of 4400154091 is 1904510044.

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 4400154091 - 2¹⁹ = 4399629803 is a prime.

It is a super-2 number, since 2×4400154091² = 38722712049088072562, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4400154191) 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, 274671 + ... + 290248.

It is an arithmetic number, because the mean of its divisors is an integer number (1100181700).

Almost surely, 2^4400154091 is an apocalyptic number.

4400154091 is a deficient number, since it is larger than the sum of its proper divisors (572709).

4400154091 is an equidigital number, since it uses as much as digits as its factorization.

4400154091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572708.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 4400154091 is about 66333.6573015539. The cubic root of 4400154091 is about 1638.6616697710.

The spelling of 4400154091 in words is "four billion, four hundred million, one hundred fifty-four thousand, ninety-one".