401751049 has 6 divisors (see below), whose sum is σ = 467343114. Its totient is φ = 344358000.

The previous prime is 401751023. The next prime is 401751059. The reversal of 401751049 is 940157104.

It can be written as a sum of positive squares in only one way, i.e., 396607225 + 5143824 = 19915^2 + 2268^2 .

It is not a de Polignac number, because 401751049 - 2⁵ = 401751017 is a prime.

It is a super-2 number, since 2×401751049² = 322807810745200802, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 401751049.

It is not an unprimeable number, because it can be changed into a prime (401751059) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4099452 + ... + 4099549.

It is an arithmetic number, because the mean of its divisors is an integer number (77890519).

Almost surely, 2^401751049 is an apocalyptic number.

401751049 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

It is an amenable number.

401751049 is a deficient number, since it is larger than the sum of its proper divisors (65592065).

401751049 is an equidigital number, since it uses as much as digits as its factorization.

401751049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8199015 (or 8199008 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 401751049 is about 20043.7284206307. The cubic root of 401751049 is about 737.8798879394.

The spelling of 401751049 in words is "four hundred one million, seven hundred fifty-one thousand, forty-nine".