401753009 has 12 divisors (see below), whose sum is σ = 469453824. Its totient is φ = 342806184.

The previous prime is 401752997. The next prime is 401753041. The reversal of 401753009 is 900357104.

It is a de Polignac number, because none of the positive numbers 2^k-401753009 is a prime.

It is a super-2 number, since 2×401753009² = 322810960481108162, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (401753059) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7457 + ... + 29310.

It is an arithmetic number, because the mean of its divisors is an integer number (39121152).

Almost surely, 2^401753009 is an apocalyptic number.

401753009 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

It is an amenable number.

401753009 is a deficient number, since it is larger than the sum of its proper divisors (67700815).

401753009 is a wasteful number, since it uses less digits than its factorization.

401753009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37004 (or 36997 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 401753009 is about 20043.7773136702. Note that the first 3 decimals coincide. The cubic root of 401753009 is about 737.8810878883.

The spelling of 401753009 in words is "four hundred one million, seven hundred fifty-three thousand, nine".